do you think that you could dedicate some time to this part of the to-do list?
action 'DLnch' (or whatever), list data files with launchable attribute in UI, action is to launch the parent app with sysAppLaunchCmdOpenNamedDB and the data file name.
Well, even if the answer is no, I would be happy if you could correct a related problem: when I use ScreenButton to launch DB's, and I do that a lot, Apt doesn't even realize that the parent app launches, so I get situations where I'm inside eReader, for example, but Apt still thinks I'm in ScreenButton.
This happens every time, regardless of the launching app (default launcher or ScrBtn), and regardless of the destination app.
I hope it's a quick fix… :-)