Unifi EdgeMax Lite Switches and LAG ports

[mdrabble]

I have a EdgeMax Lite switch with a 10G link back to core working fine.

 

I am unfortunately having to slave another switch off the edge switch as there is no way I can run new cables as the two sockets I am having to use is a floor sockets.

 

On this extra switch there are 10 computers, so I thought I could configure the 2 sockets as a LAG port so I can get a 2gb uplink instead of 1gb and hopefully ease a potential bottleneck for these 10 computers.

 

What’s the best way of configuring LAG ports as Trunk Ports as I am struggling to get VLAN bits working.

 

Cheers