diff --git a/app/controllers/ingredients_controller.rb b/app/controllers/ingredients_controller.rb
index 85cf9b9..cc980b2 100644
--- a/app/controllers/ingredients_controller.rb
+++ b/app/controllers/ingredients_controller.rb
@@ -6,7 +6,7 @@ class IngredientsController < ApplicationController
   before_action :init_session_filters
   before_action :find_project_by_project_id,
     only: [:index, :nutrients, :create, :import, :filter, :filter_nutrients]
-  before_action :find_quantity, only: [:toggle_nutrient_column]
+  before_action :find_quantity_by_quantity_id, only: [:toggle_column]
   before_action :find_ingredient, only: [:destroy, :toggle]
   before_action :authorize
 
@@ -25,8 +25,8 @@ class IngredientsController < ApplicationController
     prepare_nutrients
   end
 
-  def toggle_nutrient_column
-    @quantity.toggle_primary!
+  def toggle_column
+    @project.nutrients_column_view.toggle_column!(@quantity)
     prepare_nutrients
   end
 
@@ -207,7 +207,7 @@ class IngredientsController < ApplicationController
   end
 
   def prepare_nutrients
-    @quantities = @project.quantities.diet.where(primary: true)
+    @quantities = @project.nutrients_column_view.quantities
     ingredients, requested_n, extra_n, @formula_q = @project.ingredients
       .filter(@project, session[:i_filters], @quantities)
 
diff --git a/app/controllers/measurements_controller.rb b/app/controllers/measurements_controller.rb
index 56c4e00..ab3a76e 100644
--- a/app/controllers/measurements_controller.rb
+++ b/app/controllers/measurements_controller.rb
@@ -3,8 +3,9 @@ class MeasurementsController < ApplicationController
 
   before_action :init_session_filters
   before_action :find_project_by_project_id, only: [:index, :new, :create]
-  before_action :find_quantity, only: [:toggle_quantity]
-  before_action :find_measurement, only: [:edit, :update, :destroy, :retake, :readouts]
+  before_action :find_quantity_by_quantity_id, only: [:toggle_column]
+  before_action :find_measurement,
+    only: [:edit, :update, :destroy, :retake, :readouts, :toggle_column]
   before_action :authorize
 
   def index
@@ -61,8 +62,8 @@ class MeasurementsController < ApplicationController
     prepare_readouts
   end
 
-  def toggle_quantity
-    @quantity.toggle_primary!
+  def toggle_column
+    @measurement.column_view.toggle_column!(@quantity)
     prepare_readouts
   end
 
@@ -103,7 +104,7 @@ class MeasurementsController < ApplicationController
   end
 
   def prepare_readouts
-    @quantities = @project.quantities.measurement.where(primary: true)
+    @quantities = @measurement.column_view.quantities
     @measurements, @requested_r, @extra_r, @formula_q = @project.measurements
       .includes(:source)
       .filter(session[:m_filters], @quantities)
diff --git a/app/controllers/quantities_controller.rb b/app/controllers/quantities_controller.rb
index 3a11fb4..ea0bed8 100644
--- a/app/controllers/quantities_controller.rb
+++ b/app/controllers/quantities_controller.rb
@@ -3,7 +3,7 @@ class QuantitiesController < ApplicationController
 
   before_action :init_session_filters
   before_action :find_project_by_project_id, only: [:index, :parents, :create, :filter]
-  before_action :find_quantity, only: [:edit, :update, :destroy, :toggle, :move]
+  before_action :find_quantity, only: [:edit, :update, :destroy, :move]
   before_action :authorize
 
   def index
@@ -55,11 +55,6 @@ class QuantitiesController < ApplicationController
     render :index
   end
 
-  def toggle
-    @quantity.toggle_primary!
-    prepare_quantities
-  end
-
   def move
     direction = params[:direction].to_sym
     case direction
@@ -90,8 +85,7 @@ class QuantitiesController < ApplicationController
       :parent_id,
       :name,
       :description,
-      :formula,
-      :primary
+      :formula
     )
   end
 
diff --git a/app/helpers/ingredients_helper.rb b/app/helpers/ingredients_helper.rb
index b9b0933..53eaf9b 100644
--- a/app/helpers/ingredients_helper.rb
+++ b/app/helpers/ingredients_helper.rb
@@ -5,10 +5,11 @@ module IngredientsHelper
     end
   end
 
-  def nutrient_column_options
+  def toggle_column_options
     disabled = []
+    enabled_columns = @project.nutrients_column_view.quantities
     options = nested_set_options(@project.quantities.diet) do |q|
-      disabled << q.id if q.primary
+      disabled << q.id if enabled_columns.include?(q)
       raw("#{'&ensp;' * q.level}#{q.name}")
     end
     options_for_select(options, disabled: disabled)
diff --git a/app/helpers/measurements_helper.rb b/app/helpers/measurements_helper.rb
index a3bfda6..10536df 100644
--- a/app/helpers/measurements_helper.rb
+++ b/app/helpers/measurements_helper.rb
@@ -12,10 +12,11 @@ module MeasurementsHelper
     amount.nil? ? '-' : "#{amount} [#{unitname || '-'}]"
   end
 
-  def quantity_toggle_options
+  def toggle_column_options
     disabled = []
+    enabled_columns = @measurement.column_view.quantities
     options = nested_set_options(@project.quantities.measurement) do |q|
-      disabled << q.id if q.primary
+      disabled << q.id if enabled_columns.include?(q)
       raw("#{'&ensp;' * q.level}#{q.name}")
     end
     options_for_select(options, disabled: disabled)
diff --git a/app/models/column_view.rb b/app/models/column_view.rb
index e45a8ad..2c0715b 100644
--- a/app/models/column_view.rb
+++ b/app/models/column_view.rb
@@ -1,2 +1,17 @@
 class ColumnView < ActiveRecord::Base
+  enum domain: Quantity.domains
+
+  belongs_to :project, required: true
+  has_and_belongs_to_many :quantities
+
+  validates :name, presence: true, uniqueness: {scope: :domain}
+  validates :domain, inclusion: {in: domains.keys}
+
+  # TODO: enforce column_view - quantity 'domain' identity
+  def toggle_column!(q)
+    column = self.quantities.find(q.id)
+    self.quantites.destroy(column)
+  rescue ActiveRecord::RecordNotFound
+    self.quantities.create!(quantity: q)
+  end
 end
diff --git a/app/models/measurement.rb b/app/models/measurement.rb
index 2501968..d8ccaf4 100644
--- a/app/models/measurement.rb
+++ b/app/models/measurement.rb
@@ -28,6 +28,33 @@ class Measurement < ActiveRecord::Base
     end
   end
 
+  # Copy/rename ColumnView on Measurement rename
+  after_save do
+    old_column_view = self.project.column_views
+      .find_by(name: self.name_was, domain: :measurement)
+    return unless old_column_view
+
+    if self.project.measurements.exists?(name: self.name_was)
+      return unless old_column_view.quantities.exist?
+      self.column_view.quantities.create(old_column_view.quantities)
+      self.column_view.save!
+    else
+      old_column_view.name = self.name
+      old_column_view.save!
+    end
+  end, if: :name_changed?
+
+  # Destroy ColumnView after last Measurement destruction
+  after_destroy do
+    unless self.project.measurements.exists?(name: self.name)
+      self.column_view.destroy!
+    end
+  end
+
+  def column_view
+    self.project.column_views.find_or_create_by(name: self.name, domain: :measurement)
+  end
+
   def toggle_hidden!
     self.toggle!(:hidden)
   end
diff --git a/app/models/quantity.rb b/app/models/quantity.rb
index 17ceb53..49f6d00 100644
--- a/app/models/quantity.rb
+++ b/app/models/quantity.rb
@@ -15,6 +15,7 @@ class Quantity < ActiveRecord::Base
 
   acts_as_nested_set dependent: :destroy, scope: :project
   belongs_to :project, required: false
+  has_and_belongs_to_many :column_views
 
   validates :name, presence: true, uniqueness: {scope: :project_id}
   validates :domain, inclusion: {in: domains.keys}
@@ -26,7 +27,6 @@ class Quantity < ActiveRecord::Base
   after_initialize do
     if new_record?
       self.domain ||= :diet
-      self.primary = false if self.primary.nil?
     end
   end
 
@@ -46,10 +46,6 @@ class Quantity < ActiveRecord::Base
     end
   end
 
-  def toggle_primary!
-    self.toggle!(:primary)
-  end
-
   def formula_quantities
     Formula.new(self.project, self.formula).get_quantities
   end
diff --git a/app/views/ingredients/_options.html.erb b/app/views/ingredients/_options.html.erb
index 65a0e62..1bb441d 100644
--- a/app/views/ingredients/_options.html.erb
+++ b/app/views/ingredients/_options.html.erb
@@ -1,15 +1,15 @@
 <fieldset id="options" class="collapsible">
   <legend onclick="toggleFieldset(this);"><%= l(:label_options) %></legend>
   <div>
-    <%= form_tag toggle_nutrient_column_project_ingredients_path(@project),
-      id: 'nutrient-column-add-form', name: 'nutrient-column-add-form',
+    <%= form_tag toggle_column_project_ingredients_path(@project),
+      id: 'toggle-column-form', name: 'toggle-column-form',
       method: :post, remote: true do %>
 
       <table>
         <tr>
           <td style="width:100%"></td>
           <td>
-            <%= select_tag 'id', nutrient_column_options %>
+            <%= select_tag 'id', toggle_column_options %>
           </td>
           <td>
             <%= submit_tag l(:button_add) %>
@@ -27,7 +27,7 @@
     <% @quantities.each do |q| %>
       <td class="action" style="width:<%= 100/total_width %>%">
         <%= link_to l(:button_hide),
-          toggle_nutrient_column_project_ingredients_path(@project, id: q.id),
+          toggle_column_project_ingredients_path(@project, quantity_id: q.id),
           {class: "icon icon-close", method: :post, remote: true} %>
       </td>
     <% end %>
diff --git a/app/views/measurements/_options.html.erb b/app/views/measurements/_options.html.erb
index 37fbbb8..bd1c9b6 100644
--- a/app/views/measurements/_options.html.erb
+++ b/app/views/measurements/_options.html.erb
@@ -1,15 +1,15 @@
 <fieldset id="options" class="collapsible">
   <legend onclick="toggleFieldset(this);"><%= l(:label_options) %></legend>
   <div>
-    <%= form_tag toggle_quantity_project_measurements_path(@project),
-      id: 'quantity-toggle-form', name: 'quantity-toggle-form',
+    <%= form_tag toggle_column_measurement_path(@measurement),
+      id: 'toggle-column-form', name: 'toggle-column-form',
       method: :post, remote: true do %>
 
       <table>
         <tr>
           <td style="width:100%"></td>
           <td>
-            <%= select_tag 'id', quantity_toggle_options %>
+            <%= select_tag 'id', toggle_column_options %>
           </td>
           <td>
             <%= submit_tag l(:button_add) %>
@@ -27,7 +27,7 @@
     <% @quantities.each do |q| %>
       <td class="action" style="width:<%= 100/total_width %>%">
         <%= link_to l(:button_hide),
-          toggle_quantity_project_measurements_path(@project, id: q.id),
+          toggle_column_measurement_path(@measurement, quantity_id: q.id),
           {class: "icon icon-close", method: :post, remote: true} %>
       </td>
     <% end %>
diff --git a/app/views/quantities/_form.html.erb b/app/views/quantities/_form.html.erb
index 1c8ac3b..772643f 100644
--- a/app/views/quantities/_form.html.erb
+++ b/app/views/quantities/_form.html.erb
@@ -13,5 +13,4 @@
   <p><%= f.text_field :description, style: "width: 100%;" %></p>
   <p><%= f.text_field :formula, placeholder: t('.formula_placeholder'),
       style: "width: 100%;" %></p>
-  <p><%= f.check_box :primary %></p>
 </div>
diff --git a/app/views/quantities/_index.html.erb b/app/views/quantities/_index.html.erb
index 67f4f0e..d8ed755 100644
--- a/app/views/quantities/_index.html.erb
+++ b/app/views/quantities/_index.html.erb
@@ -19,18 +19,9 @@
           next if q.new_record?
           quantity_class = "quantity"
           quantity_class += " project idnt idnt-#{level+1}"
-          quantity_class += " primary" if q.primary
         %>
         <tr id="quantity-<%= q.id %>" class="<%= quantity_class %>">
-          <td class="name">
-            <%= link_to '', toggle_quantity_path(q), {
-                  remote: true,
-                  method: :post,
-                  class: "icon #{q.primary ? "icon-fav" : "icon-fav-off"}"
-                }
-            %>
-            <%= q.name %>
-          </td>
+          <td class="name"><%= q.name %></td>
           <td class="order">
             <% [:up, :down, :left, :right].each do |direction| %>
             <%=
diff --git a/config/locales/en.yml b/config/locales/en.yml
index bb63375..f4377da 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -13,9 +13,7 @@ en:
   field_domain: 'Domain'
   field_parent_quantity: 'Parent'
   field_formula: 'Formula'
-  field_primary: 'Primary'
   field_shortname: 'Short name'
-  button_primary: 'Primary'
   button_retake: 'Retake'
   activerecord:
     errors:
diff --git a/config/routes.rb b/config/routes.rb
index 5eedae4..3973638 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -9,9 +9,7 @@ resources :projects, shallow: true do
         member do
           get 'retake'
           get 'readouts'
-        end
-        collection do
-          post 'toggle_quantity'
+          post 'toggle_column'
         end
       end
       resources :ingredients, only: [:index, :create, :destroy] do
@@ -20,14 +18,13 @@ resources :projects, shallow: true do
           get 'nutrients'
           get 'filter'
           get 'filter_nutrients'
-          post 'toggle_nutrient_column'
           post 'import'
+          post 'toggle_column'
         end
       end
       resources :sources, only: [:index, :create, :destroy]
       resources :quantities, only: [:index, :create, :edit, :update, :destroy] do
         member do
-          post 'toggle'
           post 'move/:direction', to: 'quantities#move', as: :move
         end
         collection do
diff --git a/db/migrate/001_create_schema.rb b/db/migrate/001_create_schema.rb
index e706281..096f65c 100644
--- a/db/migrate/001_create_schema.rb
+++ b/db/migrate/001_create_schema.rb
@@ -13,7 +13,6 @@ class CreateSchema < ActiveRecord::Migration
       t.string :name
       t.string :formula
       t.string :description
-      t.boolean :primary
       # fields for awesome_nested_set
       t.references :parent
       t.integer :lft, null: false, index: true
diff --git a/db/migrate/002_load_defaults.rb b/db/migrate/002_load_defaults.rb
index c97cc02..78d7eb3 100644
--- a/db/migrate/002_load_defaults.rb
+++ b/db/migrate/002_load_defaults.rb
@@ -12,13 +12,13 @@ class LoadDefaults < ActiveRecord::Migration
         # https://www.fsai.ie/uploadedFiles/Consol_Reg1169_2011.pdf
         # https://www.fsai.ie/legislation/food_legislation/food_information_fic/nutrition_labelling.html
         e1 = Quantity.create project: nil, domain: :diet, parent: nil, name: "Energy",
-          description: "Total energy", primary: true
+          description: "Total energy"
 
         p1 = Quantity.create project: nil, domain: :diet, parent: nil, name: "Proteins",
-          description: "Total amount of proteins", primary: true
+          description: "Total amount of proteins"
 
         f1 = Quantity.create project: nil, domain: :diet, parent: nil, name: "Fats",
-          description: "Total lipids, including phospholipids", primary: true
+          description: "Total lipids, including phospholipids"
         f2 = Quantity.create project: nil, domain: :diet, parent: f1, name: "Fatty acids",
           description: ""
         f3 = Quantity.create project: nil, domain: :diet, parent: f2, name: "Saturated",
@@ -45,7 +45,7 @@ class LoadDefaults < ActiveRecord::Migration
           description: "Docosahexaenoic acid"
 
         c1 = Quantity.create project: nil, domain: :diet, parent: nil, name: "Carbohydrates",
-          description: "Total amount of carbohydrates", primary: true
+          description: "Total amount of carbohydrates"
         c2 = Quantity.create project: nil, domain: :diet, parent: c1, name: "Digestible",
           description: ""
         c3 = Quantity.create project: nil, domain: :diet, parent: c2, name: "Sugars",
@@ -137,7 +137,7 @@ class LoadDefaults < ActiveRecord::Migration
 
         # Calculated quantities go at the and to make sure dependencies exist
         e2 = Quantity.create project: nil, domain: :diet, parent: e1, name: "Calculated",
-          description: "Total energy calculated from macronutrients", primary: true,
+          description: "Total energy calculated from macronutrients",
           formula: "4*Proteins + 9*Fats + 4*Carbohydrates"
 
         Source.create project: nil, name: "nutrition label",
diff --git a/init.rb b/init.rb
index 3a4bcc9..a661d12 100644
--- a/init.rb
+++ b/init.rb
@@ -24,10 +24,10 @@ Redmine::Plugin.register :body_tracking do
     }, read: true
     permission :manage_common, {
       body_trackers: [:defaults],
-      measurements: [:new, :create, :edit, :update, :destroy, :retake, :toggle_quantity],
-      ingredients: [:create, :destroy, :toggle, :import, :toggle_nutrient_column],
+      measurements: [:new, :create, :edit, :update, :destroy, :retake, :toggle_column],
+      ingredients: [:create, :destroy, :toggle, :import, :toggle_column],
       sources: [:create, :destroy],
-      quantities: [:create, :edit, :update, :destroy, :toggle, :move],
+      quantities: [:create, :edit, :update, :destroy, :move],
       units: [:create, :destroy],
     }, require: :loggedin
   end
diff --git a/lib/body_tracking/application_controller_patch.rb b/lib/body_tracking/application_controller_patch.rb
index 853a0e8..f3d9518 100644
--- a/lib/body_tracking/application_controller_patch.rb
+++ b/lib/body_tracking/application_controller_patch.rb
@@ -3,14 +3,16 @@ module BodyTracking
     ApplicationController.class_eval do
       private
 
-      # :find_* methods are called before :authorize,
-      # @project is required for :authorize to succeed
-      def find_quantity
-        @quantity = Quantity.find(params[:id])
+      def find_quantity(id = params[:id])
+        @quantity = Quantity.find(id)
         @project = @quantity.project
       rescue ActiveRecord::RecordNotFound
         render_404
       end
+
+      def find_quantity_by_quantity_id
+        find_quantity(params[:quantity_id])
+      end
     end
   end
 end
diff --git a/lib/body_tracking/project_patch.rb b/lib/body_tracking/project_patch.rb
index bac0666..452f37d 100644
--- a/lib/body_tracking/project_patch.rb
+++ b/lib/body_tracking/project_patch.rb
@@ -5,8 +5,13 @@ module BodyTracking
       has_many :ingredients, -> { order "name" }, dependent: :destroy
 
       has_many :sources, dependent: :destroy
+      has_many :column_views, dependent: :destroy
       has_many :quantities, -> { order "lft" }, dependent: :destroy
       has_many :units, dependent: :destroy
+
+      def nutrients_column_view
+        self.column_views.find_or_create_by(name: 'Nutrients', domain: :diet)
+      end
     end
   end
 end