Importing historical draft classes into 6.5

[EvanAtMVN]

I commish a league where we use 6.5 and are in 2019 of 2009 rosters. Up until last season I had edited the draft class every year but one to reflect 09, 10 draft classes (rounds 1-5 for one year, then 5-up for bonus babies) and international free agents. However it is too much work now given my life situation but I don't want to start relying on fake names because although I don't mind it, I've noticed interest starts disappearing once too many fake names arrive -- and given we use 6.5, it's already too much of a hassle to find new owners.

I'd like to try to import historical draft classes into this online league. I browsed the options but didn't see anything for draft classes and tried to hit "Import rosters from CSV file" but not only did it error out (and I didn't see anything in the Lahman database called rosters.csv) but wouldn't that be ROSTERS, not draft classes? So it's not what I'm looking for anyways.

If anyone hasany way of helping, it would be greatly appreciated. Thank you for your time.