Merging duplicate beans

Is there a way to flag duplicates of the same bean on I accidentally added a duplicate, which I discovered much later (having already done a number of roasts with that bean), and wanted to merge the beans if possible. Alternatively, should I just correct the bean type on all my roasts to the original, and then delete the duplicate bean?

That might be quicker, assuming you have a manageable number of dup entries.

Thanks! There were only nine roasts, so I did just that.