The first step is to download all your data from Darb Finance and import them into Koinly. There are a few ways you can do that:
If you decide to use CSV files, you must make sure to import your deposits/withdrawals and trades for ALL years - not just the current one!
That's all you have to do. The only other thing to keep in mind is to tag your airdrops/forks so they show up as Income on your final cryptocurrency tax reports!