Multiple SSID’s and DHCP

I have recently purchased a hAP ac2 router and I am looking for some help configuring it. It want to have two additional (virtual interfaces) on both the 2.4 & 5 GHz bands, the SSID would be the name followed by either 2.4GHz or 5GHz (eg Training 2.4GHz and Training 5GHz), I would like each named network (eg Training) to have a the same DHCP pool to be assigned to regardless of which band it is on. I have seen plenty of videos online showing how to do this but they are only for when the router has either the 2.4GHz or 5GHz band.
I tried adding both bands to a bridge but that seemed to stop internet access.
Any help would be greatfuly appreciated.
Thanks

Bridge should be fine, just make sure DHCP server is set up to run on the bridge instead of one of the interfaces.

Do it right

I’m going to reset back to original config and start again from scratch.