Seems to me it would be a basic need for many. I've got around 50 quick keys at various levels to turn on and off specific groups or districts. I can remember the more frequent QK's, and have a certain logical grouping of the QK's, but have no hope of remembering all. I see no need to set up a quick key for every system/dept/channel... I currently have about 1500 total channels. Obviously, others organize their rig differently, but like I said, a simple cheat sheet that you could refer to seems pretty basic and shouldn't require using yet another program on top of the three already necessary (for the SDS200).
Maybe the underlying database can be accessed with Crystal Reports or in some other manner to be able to customize to suit and at least eliminate the need for duplicate data?