Wman3 with 3 wwan

i am trying configure my router as anexed image. My problem is configure the wwan to access 3 external router wifi. Can someone help me?

You won't be able to use Rede2 and Rede3 if they have the same IP.

But, rede1 and rede2 or 3 i can. Right? can you help me?

A conexão com a rede 1 fica normal e consigo fazer o compartilhamento. quando tento conectar com a rede 2 ela não funciona. Será porque usa o mesmo radio?

That yes, you can use them in mwan3.
The documentation is here.
Make sure the 2 interfaces have different metric.
And there is an example configuration.