Bug with font maker (or am i doing it wrong?)

Im trying to create some fonts by doing new->gui->Font and using the jmonkey font tool. I havent used it much yet. Looking at it thought it has the option to choose which characters you need in the font so you dont want space in the texture file for characters you dont need. the characters I need are 65-90. But when I set the character limits they seem to be ignored.

Is this feature a WIP, or is this a bug? or am i missing a step?

on a sidenote, if this is a wip/bug, is there an outside piece of software to generate these files? I’d prefer the integrated tool, but worst comes to worst i want to get my font in the game.

I found the same issue, there’s probably more sophisticated ones out there, but I used: BMFont - AngelCode.com