Is it possible to assign a specific script to a button on a toolbar?
Simple answer: No! (for UE v13.00+4)
Use hot keys and write a feature request email to IDM support.
Use hot keys and write a feature request email to IDM support.
Best regards from an UC/UE/UES for Windows user from Austria
Also in UltraEdit v16.10.0.1027 it is not possible to map scripts to buttons on a toolbar. Scripts can be executed only by hotkey or chord (key sequence), from the Scripting menu or from the Script List opened with a click on View - Views/Lists - Script List and set to auto-hide when often needed, but the screen display area needed for the list should be available normally for the edit windows.
Best regards from an UC/UE/UES for Windows user from Austria