so sorry to say, but I can't get YOu what Your question/request might be.
You want to create a sweep/protrusion or what?
But You already have some extrusion there.
Loop is a selection tool of Solid Edge what allows You to first select a face and afterwards You can select from any closed loop in this surface which doesn't need to be chained, what further is a tangent continous loop tp be prcise.
Maybe You can better describe what You want to do and I am 100% confident that then You will get the proper answer tooo.