Didn't these commands also work on custom linestyles?
It may be my memory plaing a trick on me, but I thought there was a way to freeze a linestyle and later restore it to normal.
Multilines can be frozen. See this wiki:
https://communities.bentley.com/products/microstation/w/microstation__wiki/14066/how-to-temporarily-drop-a-dimension
"The command "Fence Freeze" is used to temporarily “freeze” all dimensions (but also multi-lines, tags, and shared cell elements contained in a fence)"