Creating .num files from mesh created with blockMeshDict OpenFOAM

Hi,
yes so the following works very good:

Send all abr
send all abq nam

Could you tell me how to create other sets ? I have a few different boundaries in polyMesh, but it seams that inside calculix I need to create sets (to tell which nodes belong to set inlet, outlet, interface, etc. ).
I found one command :
comp nodes do

but I am not sure if it is the right one. I used:
comp do
send abq nam

and the .nam files are created and non-empty. Is this the right way?

Thank you for your help!

Martina