hey when i go into shift+u like everyone else to built things for the server it does not show a button saying along the lines of construct options or something like that any chance you know how to make it appear? thankyou

Click on Place Objects button.

that button is not there

press space

Most of all,make sure you are NOT in hotlapping mode cause it wont work there.

And be sure to be OFFLINE
wont work on a server where you have no admin rights.