We got a bedroom door installed that has a kitty door built into it. Archer has taken to opening it no problem, but Lana doesn’t want to push it to start the process of going through. If I crack it open she will squeeze through. We tried keeping her out last night, to try to get her to force her way in, but that didn’t work. I opened the door for her when I got up so that she could snuggle with Stephanie for a bit. Archer was fine with coming in and out during the night.