I found a discussion in the issues about making it obvious which way things are moving when commands are given and one of the comments mentioned pageup/pagedn which seem to work for focus. Mouse wheel does seem to work as well.
Autofocus doesn’t seem to be doing much but that may be because I just have a piece of lens cleaning tissue on there right now and there are many levels it can focus on. I’ll dig out some prepared slides tonight to try.
But overall glad things are working!