For what it's worth, Proscan easily imports from RR in Canada.
Once you log in, there's dropdowns for Country, State/Province, County (yes we have them)
I suspect it might be a bit of work to fix Chirp, but just sayin' it can be done.
I don't find it a big issue, as there's not much to adding freqs in Chirp, it's not like you can do big trunked systems....