Is it aloud if u have 1 person afk the entire time as long as there in the course bc we wanna try a 4 player run but cant find a 4th person and think we can beat it with just us 3

Sometimes the zombies on the flower bit stay on the cake section from the time before and can spawn on the wood platform and u could try to use those to boost you to save time like ppl do in 2 player runs , idk if it would save time or not and you'd have to get lucky but it would be cool if it works , also on this clip I'm showing u one didn't spawn up there so i just brought one through from the flower bit so i could show u an example