I shifted back another week in the late veg stage. I did get confused a bit and clicked on the first option “Extend Last Stage By 7 Days” and then had to cancel. I would recommend consideration of the following as far as choices on the dialog:
A) Consider ordering by frequency of usage (most people would likely just extend the current stage back 7 days, not go back into the previous stage - but that’s based on my own experience).
B) Give the options better descriptions:
Return to Last 7 Days of Previous Stage
Shift to Start of Next Stage
Shift Back 7 Days in Current Stage
The above button descriptions I think would result in less confusion and error on the part of users.