If it would only retain the history number in the preferences panel (personally don't even care about the actual clipboard contents) throughout restarts and had hotkeys to cycle through the histories. I'm trying to reproduce the effect I had under OS 9 and the F-key AltClipboard, which ony had two clipboards and switched between the two with (in my case) shift-command-6. This app almost does that, but I can't keep the number of clipboards to 2 through restarts and I have to use the mouse to switch clipboards.