Quote Originally Posted by AmiableApkallu View Post
If you're referring to some mechanic where you hold down a button for <N> seconds, rather than just tapping it, then no, that doesn't exist in this game (as far as I'm aware).

That has been suggested by various folks, though.
I suppose the do have stuff like channeled abilites though, that could work.. but it wouldn't be any slower or faster castering over and over.