The first and usually the only step is to download all your transactions from Bitsane and import it into Koinly. There are a couple of ways you can do that:
Note that if you want to use CSV files, you must make sure to import your deposits/withdrawals and trades for ALL years !
That's pretty much it. The only other thing to be vary of is to tag your airdrops/forks so they show up as Income on your generated cryptocurrency tax documents!