In this dialog you can control which commands appear in menus and on toolbars, and you can set keyboard shortcuts for commands. Since the menus and toolbars change depending on the type of window, you need to open a session to customize the commands for that session type.
In the 
search field, type the name or description of the command you are looking for in order to limit the list of commands.
Select a command in the list to edit. The command's description will appear below the list.
For most commands, you can enable or disable Show command in menu and/or Show command on toolbar. Some commands also have a Show command on dropdown option that positions the command on a drop-down menu connected to a toolbar button.
To change the keyboard shortcut, focus on the Shortcut field and press the desired keystroke. Click Remove to remove an assigned shortcut or Default to revert it to the factory default setting. If a keyboard shortcut is already assigned elsewhere, a warning appears and you have the option of reassigning it.
Most session types have display filters commands available. For those, Display filter presets are available for quickly selecting popular toolbar layouts (DropDown, Favorites or Toggles). These presets can also be selected by right-clicking the toolbar.
Enable Lock toolbar positions to disable drag-and-dock on the toolbar.