Hiding OS X Sierra Dock Icons from files

Question

I know with Mac OS X Versions lower then Sierra, you can edit the Info.plist file and add:

<key>LSUIElement</key>
<true/>

Right above this:

</dict>
</plist>

If I do this in Sierra, the app won't run. Has anyone figured out how to hide a running application from the dock?

Answer 1

I used the following and it worked

<key>LSBackgroundOnly</key>
<string>YES</string>