creative suggestion

i mean. you can use world edit to go around this.. i know i have done this many times. i forget the exact code at this time for furnace, but if u take the normal furnace code then add 1. again, not 100% sure. but say if it’s 61, then a lot furnace would be 62. - then ofc you can use “:<#>” to chance it’s direction.
for pistons, you can use “#copy” if u want only a portion of them or something. and same goes for lit redstone lamps w/o redstone nearby
if you don’t have access to workdwdit, you can always ask a player who is.

as for your suggestion, i feel that this could make building easier for players who don’t know their way around world edit. i am neutral for this idea since i do know my way around world edit. so +0

hope this helps a little bit.
have a great day!