Thanks to 7743 for adapting this for FEB. You could theoretically could do this with FEB events currently by manually writing LOCAs (location events), but that sounds messy. I’d wait for FEB compatibility.
Thank you for the detail in your question, by the way. It’s always good to give as much detail as possible around here.
Thanks, both of you!
I supported to stair expansion of Snakey1 with the latest version.
However, in order to put this in, the menu re-point is substantial, so we recommend backing up before doing it.
install the stairs patch,
then , Make a staircase with a map object.