Hi, running V1R3.2 and have watched a few tutorials regarding changing the paper size from default 8 1/2 x 11 on the sheet 1 tab to 11 x 17. Followed the steps and it talked about clicking the "apply"  button. 

Can anybody give me the steps on how to change from the default 8 1/2 x 11 in sheet one in paper space, to make it 11 x 17. The tutorial I watched had an apply button in the process but my version doesn't, only "ok"