I have a C shaped part, that I create in 1 feature. I want to put a sketch on the inside face of 1 tab of it.

Using the Eye Icon does not work here because I am not trying to hide a different feature, I am trying to hide part of the same feature. If I use the eye icon, it makes the whole part disappear..

What can I do to hide the intervening geometry?

(In a different software, I would use something called "Slice"

Thanks