So, i'm pretty new to SW (6 weeks new to CAD in general), so please excuse my ignorance....

This "lid" needs scalloped surfaces... both around the lower wall (already done as shown), but also extending up the angled surface..

I can't figure out how to do this.   Can somebody help me out?

the entire unit is a single revolved sketch with a few simple fillets.  I then flipped it upside down and drew a sketch forthe scallops on the bottom edge, did a polar array, then did an extruded cut.....

Is there a better way to do this?