From your Home Port, you will see 3-dots at the top right corner of the page. Click on these dots to show the options to view vessel info, edit vessel info, and configure your logbook.
If you want to view vessel info first, click on the View magnifying glass icon.
To edit vessel info, click on the Edit pencil icon.
After clicking Edit, vessel information will be shown as below. Review and edit as and where necessary.
Then click the SAVE CHANGES button at the bottom to save the changes made.