ToME: the Tales of Maj'Eyal

I played with wide shortcut panel: 3 rows, 55 size before. But what became really irritative, that top row cover tiles at the bottom of map when you stay near edge and every turn camera returns to that position... So at long last I just reduced panel by last row.

What happened:
I found some blue ring with skill, at the exit of level equipped it. Seems I've found it before, because skill appeared in 5th hotkey panel. While first four have just disappeared from UI shortcuts. Now only 5th hotkey panel (which is [A]+[S]+<number> by default) stay in shortcut panel and there is no sight of first 4.
Tried to return them, but nothing helped :(

There are multiple pages of hotkey. Hit page up/down.

Also, hitting m lets you assign a hotkey manually to any of your skills(as well as lets you use them from the menu-useful way to deal with sustains, don't let them eat bar space, just use m when you need to cut them on and off.).