If I understand what you are trying to do, you'd like to use the #2 keypad to turn the sconces on to a certain brightness level.
There are 2 ways to do this, the first is to set the default brightness you want on the sconces themselves (I'm assuming they are controlled by some other Insteon device). In this case, Set up an Action Group to turn on those two sconces, D,evice Actions>Light Appliance Controls>Turn On, and have your #2 keypad perform that Action Group.
The second way to do this with Action Groups is to specify Brightness Level. Device Actions>Light Appliance Controls>Set Brightness, and then have your #2 keypad perform this Action Group.
However, I'm not sure that I fully understand what you are trying to do..