oh, have a great progress (somehow did not work yday by just uninstall/install’ing binding, but did full “upgrade” today and devices are getting recognized).
good:
can send on/off to the switch channel and it reacts as the “controller manual button” described in section 9 of the manual (e.g. clicking once starts the closing action, clicking second time stops it, third time continues … until fully closed … clicking again starts opening … until fully open).
bad:
what does not work for me yet - the multilevel switch and giving the open or close command. I wonder, could it be because channel type for 2nd channel is switch_dimmer instead of the blinds_control ?