I like your suggestion but it's really easy to make your own custom buttons using matrixctrl. Here's an example with preset. The image used should be in your search path.. If you don't see square buttons let me know.
Yes, thanks, I have used Matrixctrl a lot but it doesn't provide the operating system niceties (copy, paste, renumber, insert, delete) of close ties with pattrstorage. Preset is pretty neet in controlling the pattr system so adding yet another GUI layer is cumbersome.