I just learned that the web UI does not hide features that aren't supported by the entire network. If I stick to my current network of a RT-AC86U master and RT-AC68U nodes, which features don't extend to the RT-AC68U and what should I set them to? If I need to replace a node, which models make good, compact, and inexpensive nodes for the RT86U (for a travel trailer turned home office)? If I decide to replace the master with a RT-AX86U, what models make good nodes for that?