Farming calculator

[Guest Smelly Paws]

Hopefully I've put this in the right place.

 

When using the farming planner I can select either the various things I want to calculate e.g. hops, fruit trees, normal trees, veg patch etc. or all, where they all show. I was wondering if it could be altered so you could select more what you wanted rather than all e.g. fruit trees and normal trees but ignore the rest. My thinking is on the line of tick boxes so I can select multiple options, instead of a drop box where I can only select one?