VMB2BLE VMB1BLS blind modules: '1C' command

For both the VMB1BLS and VMB2BLE modules, in the technical documentation (2ble documentation link) it is stated that a 1C command byte should result in a “set blind position” command. Sadly, I cannot get this to work. Even Velbus link does not seem to know the 1C command. Can anyone shed some light on what is going on with this command?

Hi!

All questions for velbus should be posted here => https://forum.velbus.eu/