Hi everyone with the hope to get some help with regard to my problem I'm writing this.
Please tell how I can create specific filters & apply them to specific collection page. Currently, all filter settings are controllable through "theme settings" tab which make global changes to the site which I don't want.
Ultimate Filter & Search app https://apps.shopify.com/ultimate-search-and-filter-1 allows creating different filter groups for certain collections. For example, you can show filter by Collection, Brand, Product type, Price on Collection A while offering filters by Brand, Color, Size on Collection B.