PS4 extended hotbar question

So I enabled my extended hotbar which appears when pressing the left and right trigger - yay more space. However, I can't work out how to add skills to it. If I do it the usual way - select the skill, press square, choose add to hotbar it only lets me add it to the normal one not extended one. Also if I press the game pad to edit the bar I can't move anything to the extended bar by pressing the two triggers.

How do you add skills to it? Sorry if I'm missing something obvious but it's just not working the normal way of adding skills.

many thanks

It's actually Bar 8 - so add skills there and that's it ;)

You can actwally choose wich of the 8 cross hotbar will be opened. It's not a "new" cross hotbar. So activate that one and put actions normally

Ah right thank you :)