Program Manager is a very nice program. It's a lifesaver for me.
One thing I would have added was being able to scroll in the list and modifying file properties from the list. Searching each time is a pain.
Otherwise, it allows you to hide programs by adding an invalid character in the front of the name. Doesn't show the program at all in the [PRGM] button menu or the [MEM] menu at all, but Mirage still reads them fine, you just have to look to the description for the name, as the original has a bad first character.
Only downfall is you can't hide the program as it runs, because that leads to bad things, but an easy workaround is load it in twice, and the second time just rename it at the prompt. Then run the second program to hide the first, and then delete the second one. That leaves you with a blank prgms list and you can still run the manager through Mirage.
Great work! 9/10