Thank you for your patience! Sounds like a silly way to begin a page, but this whole webinar and membership area is so new to me and is a work in progress. I am apologizing now for any hiccups and want you to know that I very much appreciate your acceptance that things can go wrong but I will do all that I can to make things right when they do.
The BX format is an installation file for the Embrilliance program. You can install new “fonts” to use with the lettering tool or you can install libraries to access with the Merge library design function. Check out this blog post for information on what BX fonts are. Here is a library that you can add which contains alignment lines.