FWF60D-POE 2 FortiAP220B 1 SSID Recipe

Hi, I'm looking for a recipe to build the following WiFi setup on a Fortiwifi60D-POE.

I would like to configure a single SSID to be across two FortiAP-220B's and the internal wifi interface of the Fortiwifi60D-POE.

Ideally, this would be in bridge mode so that I can include ethernet ports on the same network.

All the recipe's I have found are for adding separate SSID's to separate access points in either Bridged or routered modes but I can't find a recipe that allows a single SSID to be applied across multiple AP's and allow users to roam between access points on the same network.

Is anyone able to point me in the right direction?

Thanks