521 as repeater or mesh

liven_v2.0

I am working with an 861. I have it up and working. Users can connect and browse etc...

I have two 521g ap and I would like them to just act as repeaters or extensions of the WIFI configured on the 861.

can the 521 aps do this?

I have found configuration examples for other AP models that do this, but they have 2 radios. I don't believe the 521 has this config.

I don't care if the 521 is mesh, extended, or repeater (physically wired or wifi to connect to the APs).

Suggestions?