
Is there an easier way to accomplish the following patch logic from scratch, or rather... am I missing something?

It's a little patch to change the next viewable gridline number, ie... 33 presets forward and backward. Was pretty much for display only, at least that was the initial thought. I realize that there's the maximum wrap to sort, and also the displays don't update when clicking the 'wrap?' switch.
What's an 'in call callback'? The workspace froze twice on me because of one of these. I had this twice but tried a third time and it exported (I know I could have just 'saved patch as'). And is this a typical, or sensible use for a 'data device'?

Here's the patch..... Grid Vision


and the setting the grid to load a rack preset. which turns (or is supposed to turn off ) This is pretty much a setup within a usable state. Just need to iron out a few creases and I can look towards taking it to the stage (and expanding the hell out of it. I have the two RC51s (which are awesome btw