Please put the restart map command into GC3 (that was in GC2 as "ctrl+n").
I found a couple of threads on this that were locked that I couldn't necro, including one where Frogboy said he wanted it too and it was "on the list" and that was back in 2015.
As a player you can quit to main menu and do a quick start so it can't be all that hard to automate that in code to cut down on hassle for the player.
Give the people what they want!