Ultimately I want to save build/compile configurations for new cases that reuse previous settings to save time and move on from previous work. I've been told using Export Templates is the way to do this. If there are other ways to accomplish this please suggest.

I have several versions of VS, 2013, 2015, 2017 all of which have "Export Template..." inactivate (just grayed out). I'm told this is useful for reusing configurations of various apps like computer codes that have been developed. I've reinstall, repaired and tried a number of things suggested in various places on the web, nothing worked to activate that capability.