need help with combining interfaces

i need some advise. i have a tower with 2 AP’s on the same subnet with different ssid’s. it works pretty good but would like to replace router and ap’s with mikrotik box running the ap’s.
existing backhaul network is 192.168.1.0 connected to MT eth1
customer network is 192.168.2.0/24 with GW 192.168.2.1 assigned to MT eth2 into switch with 2 access points/ 192.168.2.2 and 192.168.2.3

proposed
backhaul network is 192.168.1.0 connected to new MT eth1
customer network wlan1 192.168.2.?
customer network wlan2 192.168.2.?

existing clients use GW 192.168.2.1


how can i combine the 2 wlan’s to the same subnet and have the clients still use the 192.168.2.1 GW?

I am having the same problem. Hopefully someone has a solution. :astonished: