Clean / Build Question

I am fascinated and enjoy the daylights out of the blueprint system. But I have a question, that may have a really simple answer. How does one do the equivalent of a “make -clean” where you delete your intermediates? Old school here, so I am used to deleting “objs”, “make -clean” or “clean and build” off of a menu. Right now, I exit, then restart UE4 to refresh objects, linkages, etc…
By doing so, I destroy my work repeatedly, and then have to try to remember what I’ve done the past few hours to unwind / undo it (or slather things in logging statements).
Nothing under the “build” menu indicates rebuilding the object files (doing a clean). If someone knows this (it may be super simple and I am overlooking it) and can share, it would be very much appreciated. Thanks.