Too many spells! How do I use multiple hotkey bars?

[Lascivious Goat]

I've been able to make do with just using one hotkey bar loaded with all essential spells/abilities, but now I've got too many spells I'd like to use during combat. What is the best way to use multiple hotkey bars during combat? How can I quickly switch between bars without missing a beat during fighting? Is it best to have all the bars open during combat? How have people set up their hotkey bars for quick access?

[Gordok]

Little blue button bottom left, hit hotkey and blamo you now have 2 hotkeys:) I thik you can do the same by right clicking it aswell. I personally have 6 hotkey bars up.

[Lascivious Goat]

When you have multiple bars up, are all the bars active or only one?

[Varangaard]

Only one. You can set the active hotkey bar by right-clicking on the bar and choosing it as active. Oh, and if you have lots of bars, turn off their borders and give them 100% transparency, might save a few FPS. You amy also want to lock them in place so you don't accidentally drag them around instead of pressing a button.

[Lascivious Goat]

Thanks, that makes it all clear.