Hi Klerun, glad you enjoy it! Apologies for the delayed reply.
I'm afraid FLOSS is feature complete as is and will only receive bug fixes.
That said, I'm curious about your use cases.
My goal with FLOSS was to create an 'explorable explanation' of how the LOS rules work, generally, from which players could learn and then take that understanding to the table, rather than, say, using the software as a 'referee' at a table, which I assume is the goal with the features you're interested in. Please correct me if I assume incorrectly though!