I have another tip for 1 which is very handy (I've been using it for several months).
1. Create and save a file name AbapDebugParaPopUps.ini with the following contents using Notepad:
[System]
Name=MLP
Client=001
Description=MLP
[User]
Name=D000328
Language=D
Password=
[Function]
Command=/h
Title=/h in Popup aktivierbar
Type=SystemCommand
2. Add a link to it in the start menu of windows (or in a place of your desk accesible from a modal window)
3. Whenever you need to debug a modal window in abap, you just drag and drop the file onto the modal window and press enter or a function code that completes the screen. After that you'll enter in debug mode. <<AbapDebugparaPopUps.ini>>
