Sims 4 on Xone question

Hi All! Sorry I've not posted in a while. Winter has been keeping me busy.

I was playing Sims 4 on my Xone. I built a very nice community pool\spa, but when it came time to save it to my library I couldn't find the button to save it. (So, basically. It was about 3 hours wasted)

I know I have saved lots before, but it's been a while. Could someone tell me where the button is?

Nevermind. I figured it out. I was just looking in the wrong place, like I said, it's been a while.