WDS with Nighthawk RAX50

I would like (if possible) to set up WDS on my network (expanding wireless coverage and consolidating SSIDs).

I have a RAX50 as my main gateway router running the latest Netgear firmware. I also have 2 WNDR4500v2’s as switches and APs running FreshTomato (atm).

Setting up WDS on dd-wrt or Tomato looks easy as they have dedicated configuration pages. However, Netgear’s firmware isn’t so straightforward/obvious on the RAX50.

I assume I need to enable wireless bridge mode on the RAX50. But, how I do need to configure this bridge to work with the other WDS nodes (and/or vice versa?)