Some dialogs have a tab bar and show different model aspects of the dialog model in different views.
Problem
Currently, commands and dialog openers can only be defined as buttons on such views within the tab bar, but not on the dialog itself.
There are such commands that refer to the dialog model and for which it is irrelevant which aspect (tab) is currently displayed.
Either one decides for a view, at which one places such commands now and accepts that some user finds it then not intuitive, or one must offer the commands redundantly several times in all tabs, which leads to many redundant buttons.
Wish
It would be helpful to be able to declare such commands directly in the dialog and to offer them as a higher-level function as a button or as a menu entry of the dialog.
Test
In TL-Demo go to the view "Technical Demo -> Components -> Dialogs". Open the dialog in the upper right corner and press the message button of the dialog.
Expectation: The message "The button 'Messagebutton' of Dialog has been pressed!" appears on the top right.