Currently this module attempts doing all the operations at once, however in some cases this is not desirable. I'd love if .b farm had additional functionalities aka only farm only plant or only bonemeal. These functions like many others could also be toggled on or off. The benefits of disabling planting while harvesting would mainly come in the for of allowing the user the use of a fortune tool as his farming equipment therefore generating more drops. Currently once the .b farm is active once it has a seed of the crop that's been farming in its hot bar it wouldn't prioritize the more efficient methode.

commands could be harvest, plant and bonemeal plus it should be pretty easy for someone to code since it's just splitting it up

Something else that would be great would be if farm would plant the same crop that it harvested from each block. I used this command on a few-chunks row-planted farm and, while I got a big and convenient harvest, it completely disordered my field. Crops suffer something like a 50% growth speed penalty if they have another crop of the same species planted adjacently on both the X and Z axes, so preserving the existing layout would not interfere with that.