I created a part by using the Mold Cavity Feature within an assembly. Now that our revisions levels have progressed from prototype to production I would like to redo the cavity feature so it references the correct production part and not the prototype part. I have done it in the past by just deleting everything in the part from the cavity feature down in the tree. So i have a basic part to start from scratch. My problem is that the Mold Cavity feature icon no longer shows up in my Mold toolbar or by going to Insert/mold/cavity.

Where did the cavity feature go?