Maybe the first post could help you, they have a link to all the tools there. Also try asking them over at the Github page linked there, since the last time topic creator was here was in May.

Edit: I just re-read the OP, I'm not sure if they actually have what you're looking for.

 

Sorry, neither am I! I can help with English proofreading, as the only "hacking" I've done was switching voice files in TInke (Jap/Eng). I just contribute to the forum when I can, I'm not a romhacker.

You can create a "pull request" to ask for the width/font limit editing feature to be added here:

https://github.com/Kaidou-Shinobu/DigiPak

Or you can file it under "issues".

However if you make your own thread here, someone will probably help you, you can often see people knowledgeable about romhacking answering topics here.