Data type set

[sck]

Objects are only 'synced' during KNX project import but this depends. If a object already exists in LM then it will not be updated unless you select: Update existing objects:
LM has Bus sniffer and once connected to bus it will start adding objects if telegrams are sent on the bus. Such object will not be updated during ETS project import if Update existing objects: is not selected.

Thanks for the explanation. All clear now!