Yes, it's possible to synchronize your current open positions to your open positions on Cryptohopper. Please note that you can synchronize positions at the current price of the cryptocurrencies you own, or at the original purchase price listed in the crypto exchange's trade history.
Also, note that when synchronizing positions at the original purchase price, your positions may be sold immediately when your sell settings are reached.
Dashboard
Scroll down on your Dashboard until you see "Current assets" on the right side.
Click on "synchronize."
Determine at which price you want to synchronize the position.
Enable the toggle called "Sync."
Click on "Synchronize selected."
Advanced Dashboard
Click on the Dollar sign on the Advanced Dashboard to view your assets on the crypto exchange.
Click on "synchronize."
Determine at which price you want to synchronize the position.
Enable the toggle called "Sync."
Click on "Synchronize selected."