Is it possible to cycle commands as well as settings?

I'm not clear what counts as "any javascript object" when passing arguments:

What I would like is to use settings cycler to set up a case changing key, which would cycle the selection through lower case, title case, and upper case. If you typed like me, you'd understand why. 

But I don't think I can put an editor.action as one of the values to the arguments. Would this be possible? 