Mace Windu has the Force Choke ability with this mod installed, this is necessary for his boss fight in Palpatine's Arrest to work properly. If you haven't completed a level in Story mode first, you will be prevented from entering the level in Free Play mode.

Lego Star Wars The Complete Sage Nexus Additional Levels at Lego Star Wars The Complete Sage Nexus

The A New Hope level door in the bonus room of the cantina now leads to a new hub room (Dexter's Diner) with doors for the new levels (don't worry, the original A New Hope level is still accessible). Selecting Story when entering the new hub will allow the levels to be played in Story mode, selecting Free Play will allow the levels to be played in Free Play mode.The party members in the Story version of the new hub are Darth Vader and Stormtrooper, this is because the new hub was made using the A New Hope level.