Home position for mission mode

Hi all,
As we know that if we have not set home position(manual or automatic), px4 can not entry in Mission mode, so here is the problem we need to check from QGC everytime to confirm that. but for APM flight stack, they store the home position into the first waypoint, so you could modify your home position or even do nothing as before. no need to double check for that and worried if can not entry Mission mode.