When adding bulk plots, allow option for 'External Reference' to copy across

What is your challenge?

When you add one plot then click to create X many more plots, some fields will carry over e.g. address but one helpful for MTVH would be 'External Reference'.

How does this impact you?

Means the external ref doesn't have to be added manually to each plot after creation.

Please describe your idea

Field to carry over as pre-populated based on first plot added