New setup using Edgemax how to route throught the router

Fist off i'm green at the router part

I've got a couple new towers setup and they are mine to manage so off i go 

(we mostly use MikroTik routers but wanted to try Ubiquiti)

(ip address are not actual but representative - Routers are setup using the wizard feature as a base) 

All UBNT radios are set to bridge mode

First (Main) tower has 4 radios and a ER-POE5 (Main tower for all sub towers down the road) 

   DHCP Client 66.55.44.33

   DHCP Server 10.100.1.1/24

Second tower has 3 radio's and a ep-r6 dhcp from main tower

   DHCP Client 10.100.1.250

   DHCP Server 10.110.1.1/24

3rd has 3 radio's and a ep-r6  dhcp from main tower

    DHCP Client 10.100.1.251

    DHCP Server 10.120.1.1/24

I am successful in getting internet to radio's but when i'm back at the NOC i cannot access anything past main router for my DUDE software so i can manage radio's. In the MT world i would add a "route" from main router through each till i hit the last router. How is this accomplished in Ubiquiti Edgemax?