Steps to Add Selected Products as a Filter
Select Products
Choose the products you want to filter using the checkboxes.
Click the Filter Icon
Locate the filter icon (three horizontal lines) in the toolbar above the product list.
Hover over the icon to confirm the function ("Add selected products as filter").
Apply the Filter
Click the filter icon to activate the selection-based filter.
The product list will now show only the selected products with the filter applied.
Adjust or Remove Filter (If Needed)
Modify the filter parameters to refine results further.
Clear the filter to return to the full product view.