All, I am considering DECO E4 to improve my coverage in my home. However I already have an existing router (with OpenWRT) that I do not want to give up.

My question is: Can I add DECO E4 to my existing router? I have two VLANs. One for the private network VLAN:10 and one for the guest network VLAN:90.

Does the DECO E4 has the option to connect to a port on my router with both VLANs and have a wify network for the private (VLAN:10) network and one wify network for the guest network (VLAN:90)? URLs to articles where such setup is covered is also much appreciated and/or pointers to otehr Mesh products that do support such setup.