Adding tags in bulk

With the Tags panel located in the Properties column, you can add as many tags as you want in just one go!

Indeed, once you have clicked on the add icon  on the toolbar, you can enter all the tag names you need, separated by a comma, no spaces.

By default, the option/icon  is enabled in the Add tags window, which means that all tags you're going to enter in the window will be created but also associated to the product(s) you selected before hitting the add tag icon: feeding two birds with one seed :)