Thanks to some help from 
Download available on github for macOS, Windows and Linux.
The interface is found within the Accounts section. This interface shows all accounts loaded, their total vests, available vests to delegate, how many vests are already delegated and where they are delegated to. The green plus button lets you start a new delegation.
Clicking the + button will prompt you for two pieces of information:
I've also included a messages at the bottom of the screen with a small explanation of delegation.
The overview screen now displays your active delegation(s), who they are to, the amount, and the date it can be revoked. Each row also has a small orange trash can, which let's you remove the delegation and revoke your vests.
When revoking the delegation, the VESTS will be locked in limbo for 7 days. This is to prevent people from double voting with the same Steem Power twice.
to, amount and memo fields will reset, instead of everything.I'm planning to stop on Vessel for a little bit and focus on chainBB for the coming weeks. I will address any critical issues that arise as they're reported but no new features will be implemented in the near future. At this point I'm personally using the wallet for all of my accounts daily.
If so - make sure to take part in Bobby Lee's twitter poll and vote for Steem as the currency that should be added to BTCC. The more exchanges we can get supporting Steem, the more options all of us will have to buy or sell Steem :)