It'd be good to be able to designate some pools as "immediate exit". At the moment I have some small splash pools which are meant simply to be the end of flumes, but as soon as people slide off the end and appear in the pool they just sit there floating about doing nothing. In reality, some pools are plunge/splash pools only and lifeguards make sure you exit them as soon as you can to make sure it's clear for the next people on the slide. Would be good to replicate that functionality. (I suppose a corollary to that would be to be able to mark pools as "exit only" as well)