A parent window of a dialog cannot be focused
It is not possible to minimise, move, etc, a window that has a dialog.
For example Alt-F7 moves the focused window, but Alt-Tabbing to the parent window immediately passes focus to the dialog.
Parent windows should be able to have focus, but when focused any click or keystroke should immediately prompt it to transfer focus to the dialog. If the dialog is minimised, it should be restored.
Suggested priority of implementation: Low