applying same boundary condition to multiple selections

Hi,

I am trying the following thing:

Lets say there is a boundary condition, named "Ground1". I want to add 30 selections, defined arbitrarily, to "Ground1" BC. I am not able do this. To do so, I have to create 30 BCs first, viz "Ground1", "Ground2", "Ground3", ............., "Ground30"; but, this is cumbersome.

Does anyone knows how to do this? Or, is there a way to group multiple selections? I am using 4.2.0.150 COMSOL version.

Thanks,
Kapil