Increase Subscribers on a single Sector

Is there a way of increasing capacity/subscriber (i.e 400 subcriber instead of 200) on a same AP sector. Can we cascade two AP’s ogether on the same sector to achieve this?

Thank you

Since you are already willing to use two AP’s, why not just mount both AP’s on the same mount, separate them by 25Mhz and give them a different color code? You would then have your 400-SM capacity and be in the same sector. When you register your SM’s, just make sure you register them to the correct AP and just track how many SM slots you are using up.