I've tried searching for this but to no avail.

I've got quite a large number of products (300+) and I'm setting up a new structure of categories to make browsing much more smoother and efficient.

I want to move the products into their new categories, but the only way I see how to do it is click on each individual product's M and choose the new category.

Is there a way to move them in batches? I know some of you will suggest renaming their current category, but I'm moving some products into different areas for better relativity, so I can't just simply rename the category and leave it at that.

Any suggestions?