Currently you are unable to increase the player cap of PlayStation worlds from 5 without turning cheats on. I remember before the /setmaxplayers command worked with cheats off and it should resort to that way. My friends and I like playing with achievements on and it's really annoying that only 5 of us can play at once.
MCPE-93517
Player Limit 5 in PlayStation levels
Resolved
Duplicate
0
Thank you for your report!
We're actually already tracking this issue at MCPE-85009, so I will resolve and link this ticket as a duplicate.
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