I'm doing mold flow analysis using Solidworks Plastics 2019, but this air vent parameter mesh selection seems very cumbersome. The part fills from the bottom. The top is vented from core pins. I've started selecting the mesh top faces nearest to the core pin, but I have ALOT of these to do and even a single segment takes a long time. Should I be selecting the top or the inner faces? Is there a better way to select the faces other than a selection rectangle or face by face?

Update (09Dec2025): Since I haven't received response, I installed OP Auto Clicker and set it to 50 milliseconds. It gets a little bogged down selecting all the mesh but it is much better than having to select each polygon individually. I've also decided to select the inner walls instead of the upper faces and added the outer polygons due to the core pin being vented as well as the parting line of the outside.