I too would like to know how to do this. I see that there is a "version" field, but am not sure how it is supposed to be used.
Ideally, I'd like to be able to keep a master version of a receipt, and then also have a log of each batch I make, with actual batch information such as date, volumes, changes if any, etc. The batch entries are what should show up on the calendar, and at the same time, if the I make some changes from batch to batch, I'd still like to have the "master" version of the recipe to refer to.
Can this be done?