On the lower right corner of the code, i can see a field displaying how many tokens I use out of the 32000 token limit. But I'd swear that some days before, it was displaying my number of symbol usage out of the symbol limits.

Is there a way to switch between the two ?

It seems to switch between the token and character limit based on which you're "closer" to (I'm not sure how that's determined). I've been unable to find a way to force it to one or the other.