In this section we summarize the most important limitations of the user experience of Archicad Add-Ons.

• You cannot hide or change the standard elements of the Archicad GUI.
• Cannot change the content of Context menus.
• Cannot add Cursor shapes and use them.
• Cannot change or add mouse constraint directions to be activated by pressing Shift.
• Cannot change the interaction and feedback of existing Archicad commands. (But you can get notified of them and do some changes after.)
• Cannot change the appearance and behavior of existing element types.
• In Section/Elevation windows, element links managed by Add-Ons cannot be effective until the user chooses the Rebuild Model or Renew commands.
• Cannot add items or options to standard palettes or their pop-up controls.
• Cannot add items to Pet Palettes.
• Note: In the 3D window, if it displays elements of a floor plan selection, Add-On must manage the selection of elements it adds to the project.