Without the ability to break the data into individual wallets this serves no purpose for anyone using "wallet based tax tracking" (as required for all USA citizens).
USA taxes treat each wallet as a separate entity and thus losses and gains occur separately between wallets.
Examples:
1) Showing me that I have a $5,000 loss on BTC that I can use for tax harvesting means nothing without knowing how much BTC within each wallet I own is at a loss.
2) showing me that I have $5,000 in "long term gains" and $2,000 in "short term gains" is of no value UNLESS the data tells me how much long/short gains are available to sell WITHIN EACH SEPERATE WALLET.
I'm at a loss how Koinly would even put these services on their website without this feature, as this is an obvious requirement for any person (from any country) that uses "wallet based tracking".