Request: timed rule, "trusted app" for 10 minutes only.

What happened? I am in “Install mode”.
Windows update, update .net 3.0 SP1. Now, during that update, mscoresvw.exe spawns millions of child processes of itself (mscoresvw.exe), which modify .exe files and registry etc. The parent mscoresvw.exe does nearly nothing directly, it just watches it’s spawned children doing the work.
I do NOT want to set the “remember that I clicked trusted mode”, but then I have to hit OK for every mscoresvw.exe child process created to do some work.
I know, this is by design. Now a timed rule (remember for 10 minutes) would spare me the regular cleanup in comodo afterwards when I check the “remember” button.