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The current programmer has it to this stage but can't finish due to another contract. We need to be able to add more ports of loading, ports of destination, more dates for certain criteria like documentation required date. Once the back end is built, the only variable that will need to be edited every fortnight will be the vessel name, vessel voyage and the ETD dates. As an example (Melbourne to Singapore) once we enter the vessel and ETD, the back end will automatically calculate the ETA as the transit time will be locked in as a constant. The vessel name and voyage number will be a changing variable.