E 400 load balancing

Dears,

What if I have 3 AP E400, and I put them near to each other because they will serve huge number of clients in small area, so the question here, how to make load balancing between the 3 APs, ie, if I have 150 client i want every AP has 50 clients, and if the number increases, the clients will distributed at the same method, i don't want one AP has 100 client and the other APs has 5 clients, because it will make over processing on one AP while the other APs, very relaxing. 

Thanks for your time 

i also need to know the answer to this

you can set max client , ex: 50 client / AP 

Just FYI... you may want to re-post this question  HERE instead of the 'Ideas' section of the forum... you're more likely to get a response from people and Cambium techs.