diff --git a/rails/app/models/batch.rb b/rails/app/models/batch.rb
index b746ddf..152c248 100644
--- a/rails/app/models/batch.rb
+++ b/rails/app/models/batch.rb
@@ -3,8 +3,4 @@ class Batch < ApplicationRecord
   has_many :menu_options
   has_many :wheel_options
   has_many :key_binds
-
-  def render
-    actions.collect(&:render).join("; ")
-  end
 end
diff --git a/rails/app/models/execution.rb b/rails/app/models/execution.rb
index 3d0fd35..9ac6e09 100644
--- a/rails/app/models/execution.rb
+++ b/rails/app/models/execution.rb
@@ -1,7 +1,6 @@
 class Execution < ApplicationRecord
   belongs_to :command
   has_many :actions
-  has_one :execution, ->(o){Execution.find(o.value)}
 
   def execution
     Execution.find(value)
diff --git a/rails/app/models/setup.rb b/rails/app/models/setup.rb
index 917d57e..495f767 100644
--- a/rails/app/models/setup.rb
+++ b/rails/app/models/setup.rb
@@ -3,10 +3,4 @@ class Setup < ApplicationRecord
   has_many :wheels
   has_many :menus
   has_many :input_devices
-
-  def render
-    key_binds.collect { |key_bind|
-      %(alias batch#{id} \"#{key_bind.batch.render}\"\nbind #{key_bind.key.ingame} batch#{id})
-    }.join("\n")
-  end
 end
diff --git a/rails/db/migrate/20221127130223_create_keys.rb b/rails/db/migrate/20221127130223_create_keys.rb
index 9fe2458..5cb0c3f 100644
--- a/rails/db/migrate/20221127130223_create_keys.rb
+++ b/rails/db/migrate/20221127130223_create_keys.rb
@@ -52,6 +52,7 @@ class CreateKeys < ActiveRecord::Migration[7.0]
       t.string :name
       t.string :regex
       t.integer :specifity
+      t.boolean :is_nestable, null: false
       t.timestamps
     end
 
diff --git a/rails/db/schema.rb b/rails/db/schema.rb
index eec76c3..73097dd 100644
--- a/rails/db/schema.rb
+++ b/rails/db/schema.rb
@@ -43,6 +43,7 @@ ActiveRecord::Schema[7.0].define(version: 2022_11_27_130223) do
     t.string "name"
     t.string "regex"
     t.integer "specifity"
+    t.boolean "is_nestable", null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
   end
diff --git a/rails/db/seeds.rb b/rails/db/seeds.rb
index a484b20..0837470 100644
--- a/rails/db/seeds.rb
+++ b/rails/db/seeds.rb
@@ -317,16 +317,32 @@ keys.each do |key|
 end
 
 {
-  'none' => /^$/,
-  'command' => /^.*$/,
-  'string' => /^.*$/,
-  'integer' => /^\d+$/,
-  'float' => /^\d+(?:\.\d+)|\.\d+$/,
-}.each_with_index do |(name, regex), i|
+  'none' => {
+    regex: /^$/,
+    is_nestable: true,
+  },
+  'command' => {
+    regex: /^.*$/,
+    is_nestable: false,
+  },
+  'string' => {
+    regex: /^.*$/,
+    is_nestable: false,
+  },
+  'integer' => {
+    regex: /^\d+$/,
+    is_nestable: true,
+  },
+  'float' => {
+    regex: /^\d+(?:\.\d+)|\.\d+$/,
+    is_nestable: true,
+  },
+}.each_with_index do |(name, conf), i|
   Datatype
     .find_or_initialize_by(name: name)
     .update!({
-      regex: regex.to_s,
+      regex: conf[:regex].to_s,
+      is_nestable: conf[:is_nestable],
       specifity: i,
     })
 end
@@ -379,6 +395,7 @@ Setup
       command: Command.find_by!(
         datatype: Datatype.find_by!(name: 'float'),
       ),
+      value: 2.0,
     ),
   )
 )