Vessel "internal data" can be accessed in the top tab menu of the vessel master data screen.
For "old" vessels that you have in the system that has minimum of one commenced voyage, the internal data should already be established. For new vessels, or vessels without commenced voyages, then these vessels you need to "Create Internal Data" as per below indicated.
Below three items need to be filled in to create
Once this is done it will be possible to access below screen
