I use wallet version 1.5.0.0 on Ubuntu linux. There are no such commands. Have I to use version 1.5.1.0 for this?
Yes, I think you so try 1.5.1.0 to get it to work
It works with version 1.5.0.0 too, but is has to be configured in the HoboNickels.conf file (on Linux case is important), console commands are not possible. This is suitable to me, I'm happy.
about thresholds, you may put them in hobonickels.conf
splitthreshold=****
combinethreshold=****