Station Offset Keyin (SO=)

I can’t get the station offset command to chain together in a script with other commands in a single line. I do have Inroads loaded and an active horizontal alignment.

The following keyin works

PLACE SMARTLINE;XY=0,0;XY=100,100

But when I replace “XY” with “SO” I get an error (unknown keyin or command)

PLACE SMARTLINE;SO=0,0;SO=100,100

However when I load a txt file with the following I get the results I want…

PLACE SMARTLINE

SO=0,0

SO=100,100

Any ideas on what I’m doing incorrectly?