Anyway to write a text on the sign that bulild by you?

Game Talk The Garage
1

I still can’t figure out how it’s working, If anyone can help with that.

2

There was a recent thread about this, http://smf.cataclysmdda.com/index.php?topic=7992, and the first response already contained the answer. Alternatively the wikie, http://www.wiki.cataclysmdda.com/index.php?title=Sign, contains the information as well.