Window crank

Unfortunately, you won't be able to install a nesting handle or cover on your operator. Your operator already has a cover that's physically built into the mechanism and cannot be removed. 

The best we can offer you is a folding handle like our 39-205, but odds are that will interfere with your blinds, too. You probably won't find anything that gives you the clearance you need. In almost all cases, it's necessary to install the blinds away from the operator handle.