Which version of SolidWorks do you have? because I wanted to see on your drawing, to try to solve the problem, but I can't open it :x but I can send you an example and you can tell me if it works:)
hoping that you have at least the 2014 version :x...
Tell me again if its function because I used this document to make the little tutorial;)
If its not working can be a problem on the solidworks side or automatically
Have you tried stretching it from the editing window?
Normally it adds the rows and columns, but beyond a certain number things can get complicated.
Otherwise try to go by insert in the menu, and insert the table linked to the room, however you will have to check if it is up to date with the changes made.
Hello a.leblanc and thank you for the message, indeed I tried the first method described but it's an "important" table with more than 40 columns and more than 100 rows... And it has no connection with the play.