Thanks for your comments, Hellser

, I hope I can get a bigger sample of resolutions at least.
Aaanyway...a new version has been released (1.2.1):
-Add: the "Page Up" and "Page Down" keys can now be used as shortcuts to the Move External File Up and Move External File Down buttons, respectively.
-Add: the "Delete" key can be used to remove external files.
-Add: latest Freedom versions, different Action Doom 2 version.
-Fix: correct Strife version numbers.
-Change: make the command line arguments edit slightly larger so its edge is in line with the extended parameters border, etc.
-Add: new "Mod Name" box (if you don't want to write one, it will be magically filled from your filename).
The Home and End keys are part of the box's navigation so...no change for those, though you can keep the PageUp and PageDn keys pressed to achieve a similar effect

.