Just looking for clarification on this. I'm DM and all my player's just leveled up so I'm making sure they did this properly. When using the character sheet's damage workspace, is this just for basic attacks? Or does the same formula apply to powers as well? Say a power does 1d12 + STR mod damage. Is it just the flat ability mod? Or are the weapon proficiency, feats, and enhancements added to this as well?
This entirely depends partly on the keyword of the power, and partly what the power says.
Most weapon attack powers take the following form:
This is your set of clues as to what to add to the following for the to-hit
And the following for damage
Powers with the implement keyword work the same way with the following exceptions:
To answer your specific questions:
Hope this helps and please feel free to ask if you have any other questions.