Looks like i have run out of room.

Will removing the comments give me more space and is the following line all comment or is the part in the ( ) needed for the script to function?

 ;Trace("BOOKCASE - I've been ACTIVATED!")

You can only run out of room in the CK script window, the game will compile a script of any length if you write it in Notepad++ or a similar utility. However, if you've run out of room it is HIGHLY likely that you have unnecessarily repetitive and inefficient code.

I'm extending the capacity of the bookshelf from 18 to 34 which nearly doubles the length of the script.

Can you answer my question about the comments?

is any line starting with ; all comment and are lines wraqed in { } also comments?