Hey Tarekith -
I'm no expert, but happy to share what I know / what I've learned.. First - the SoundTower editor, doesn't allow you to overwrite banks 5 through 9. Only Banks 0-4 can be written to...
My quick Librarian tips...
1. Before you do much . . . make a backup of banks 0-4. Yes, they're backed up in banks 5-9... but, it is nice to have copies of these banks..
2. Plan out, how you want to organize your patches. (or not). In my case - I have settled on creating entire sets of specific tones. Here is what I have / use for my 'keepers':
000-099 Pads / Strings.
100-199 PolySyn patches
200-249 Brass patches
250-299 Sound Effects
300-349 Keys. (Organs, ePianos, ...)
350-399 Bass, Sweeps, Stabs, Percussion patches
400-449 Leads
450-499 Arps / Sequences
I went through the factory patches initially, and wrote down which category I would move keepers to. I 'kept' maybe 40-50 of the factory patches.. and moved them into the categories above. If a bank / patch location was unused... I 'initialized' the patch.. so it has nothing in it's slot, in the librarian. Just an init patch.
It may look like I've filled my 1000 patches (because the upper 500 are factory / unchahngable) - but there is a LOT of room in the categories I have setup. With stuff in categories - it's a ton easier to built up right-hand side sets / programs.
There are Soundtower video's on how to use the right hand side windows... but in general - I use those to load up sysex files / patches , audition.. then move the patches into banks 0-4.
One thing you can do, is look for other SoundTower librarian videos.. I learned a bunch of stuff early on - from watching their videos for other synths (there is a lot of commonality between them).
hth -
Joe