Z Index for Mobile Menu

I am using Mobile Menu CK Pro 1.15.10 and a Template Creator ck template. My menu button is set to position "current menu". When opening the menu, the dropdown stretches the existing wrapper height instead of overflowing to the next wrapper. Where do I change this behaviour?

Hi
in the options you can use "display effect" , instead of normal you can try slide, top fixed ...
CEd

Thanks Ced. That is perfect. I actually knew that from working it out once before but had a complete mind blank this time round :oops: