That's really great feedback about the documentation, I'll make it more obvious which modifiers keys need to be held down. Again, you can change the modifier key used for operators, counts and motions so that howm only uses one modifier key. This is how I had it for most of howm's development. I changed to using two modifier keys as I felt that it was nicer to have a logical separation between the commands and the operators, motions and counts. It also meant that some keys could be reused but with different modifiers.