A separate page with all products and a working filter?

Question

opencart

I'm interested in the possibility of creating a page of the "Catalog" type, where all the products of the site will be displayed and a filter will work, for example FilterPro Mega or another. Are there similar modules for such things? Or it is necessary most to saw the Controller, model and , etc.?
And another question, is there a proven free plugin for the "Show more" button, which will be instead of pagination, which will also have to work in tandem with the Filter.