I don't attach Anubius plants to anything, but I can tell you that you can cut a section of the plant and it will take the punishment and keep growing. I haphazardly take sections of established plants without any problem. I would recommend that you take as large a piece as possible.
Hint or Tip: I have found that whenever I add iron to the water column every Anubius species I have puts up new leaves.
Aquascape? I'm a crypt farmer.
It's a fine line between fishing and standing on the shore looking like an idiot.
That IS an aquascape, it's titled "The Vacant Lot".