I just got a Q5 Pro myself and use the End key all the time so I reworked the keys and flashed the firmware.
[del] is now [PrnScn]
[pgup] is [del] / [insert] (Using + [fn] key)
[pgdn] is [home] / [pgup]
[home] is [end] / [pgdn]
I'll have to order new keycaps to match, but so far it's felt good to use that way and I find that the only time I mispress is when I look at the keyboard.