Add the ability to explicitly define the flange bracing points or unbraced length for beam top and bottom flanges. Currently the program options are limited to only specify whether or not the deck provides flange bracing, but for structures without decking in a given the girders may unconservaitively be considered "braced" by perpendicular joists and this is not always appropriate. More flexibility to explicity define flange bracing would be helpful. Many competitor programs offer this capability.
As a follow-up to this request, the option to turn off the "check unbraced length" for beams seems not worthwhile to have in the program. This is unconservative in most cases. I would recommend doing the opposite, which would be "consider all beams fully unbraced" for cases where you have minimal or no diaphragm to brace the beams. It seems that most analysis software packages conservatively assume the beams to be unbraced unless the user explicitly defines bracing points, which seems like the safer way to set up the program.