Mass action - products to cateogry?

-- HikaShop version -- : 2.2.3

Can i with mass action select more products and assign it to a specific category? There is no auto-action need, the backend-user will select products and category, possible?

Yes sure.

Look at our documentation: www.hikashop.com/support/documentation/i...massaction-form.html
You basically have to select the product you want through a filter and then use "select category" to add categories to these products.

but i can not see products here, only categories: prntscr.com/2qa5tb , what i do here wrong?

You won't "see" your product but note that you'll be able to select and choose them by adding a filter through your mass action, you should check the documentation that Eliot gave your to see how filters work.