Filter by INDIVIDUAL attributes in wookomers, how to do it?

Question

WordPress

Hello. The essence of the problem: a lot of goods were imported. and all attributes have become individual. That is, attributes are not set as standard in the workbook, but in the product card in the individual attributes. Accordingly, the standard filter does not see them, because it looks at what is in the standard attributes. So can anyone help how to organize a filter specifically for individual attributes? maybe there is an advanced filtering plugin?