I can't understand why but I tried everything and I can't see more than 3 hots (resto druid) on the raid frame bar. Every option like sizing and such works correctly.
I have latest version. What am I doing wrong?

The stock buffs/debuffs only show 3. That was a design decision by Blizzard. Disable the stock buff and debuff icons if you don't want those to show and instead you can use ERFs indicators

EDIT: FOUND THEM! Sorry again!

Sorry but where are these options? I feel like an idiot for not finding them xD