You could set the Property ID of the Door to 2668 and use the Property Label. It is quite versatile. You can use a frame if you want and have it opaque.
"The simplification of anything is always sensational" GKC
AC 25-4013 USA, CadImage Tools
2019 MacBook Pro 16" w/ AMD Radeon Pro 5600M GPU
OS X 11.6
2.4 Ghz 8 core i9, 64 GB RAM
27" LG 5K Monitor