How can I manage all of my skills on hotbars?

[Lilyth]

I see. The arrow keys move the camera as well. It will take some getting used to, but I will test it out.

The number pad keys though seem to have several functions, none of which I've ever used. Are they important? Can I safely remove / change them? Or do I need to reassign those keys somewhere else.
Now I can see how it is possible to control the camera without a mouse.

I never really seemed to miss any of those functions. Also don't worry about reassigning any important keys, you can always click "default" to revert them back to their original positions. The only functions the game makes sure you need to have assigned somewhere are "confirm", "cancel" and "escape". But the system always tells you that if you mistakenly erase them.

The advantages (for me) of using the right number pad is that it gives you soooo much available keys, all close to each other for easy access (0 1 2 3 4 5 6 7 8 9 / * - + . , ENTER). After they are all taken out, you can use some modifiers such as "ctrl", "alt" and "shift" to effectly quadruple the amount of available keys. It takes a little while to get used to, but the recent ability bloat issue hasn't affected me too much. I've barely started to use my second modifier (alt) and I already have all my skills mapped out, includind PvP and pet ones.

But I still rather SE don't give us even more abilities in 4.0 because even with so many keys, it can be a pain to map and keep track of all of them x_x