Crank handle that won't hit the shades

Hello there. The window may be Milgard, but I believe this operator is a version of the ROTO 39-092. If this operator uses a handle that connects to a 5/16" Hex on the operator, then you should be able to use the 39-224 Folding Handle. Take a look and let me know what you think. If you're uncertain, remove the existing handle and show us what it attaches to on the operator base.

Side profile view with measurements

Alternate view of the gear hole