Skills - ElWiki
At level four, you’ll unlock one more skill slot, so you can then assign two different abilities to your action bar. Then, you won’t unlock any more skill ...
How to Unlock the Mutations Tree in Blood and Wine - Turn and Face the Strange - Blood and Wine Side Quests | The Witcher 3: Wild Hunt | Gamer Guides®
Information about how to unlock the Mutations tree in The Witcher 3 Blood and Wine. How to develop new Mutations and unlock extra ability slots.…
Diablo 4 max level cap explained | GamesRadar+
The max amount of skill bar slots in Diablo 4 is six. There’s no way to assign more skills to hotkeys than that. After you unlock the initial six skill slots, there’s no adding more.