I was discussing with @Justin_Perkins over in the Facebook group a few months back about adding clip colours with custom key commands. Is this possible to do?
Currently I don’t think you can modify the key commands for clip colours at this time, though I maybe wrong.
I suggest you try them. The so-called indexed shortcuts are an easy concept once you’ve got the idea: you type a number (1 to…), then a letter as a trigger. This kind of shortcut is used in many places of WaveLab, and this allows to spare other classical shortcuts. The drawback is that they can’t be overriden.