How to turn on DeX on Samsung S9

[sungksoh]

I have Samsung galaxy S9. DeX was on initially but I turned it off to use screen mirroring. Now I want to turn on DeX again but can not figure out how. Internet says to turn on in my settings menu but I can not find DeX button anywhere in settings. Please help me. Sung

 

[ocnbrze]

It should be under advanced settings. If anything you can do a settings search like I just did to find where Dex is located on my phone.