Horizontal Category Filter for a Magento Store

I have developed a site on Magento using this theme from Themeforest and the client would like a the category filter to be horizontal and have 4 columns underneath. When prices filter changes, can it still show the full price range - (eg https://www.coxandcox.co.uk/indoor-living/decorative-home/faux-plants-flowers/?price=-4366)

The theme link is below -
https://preview.themeforest.net/item/rubix-multipurpose-sections-magento-2-theme/full_screen_preview/27274285?_ga=2.263964620.1583872253.1629722015-479776507.1628433964

Also, with the filter, is there a way a customer can choose two colours?

Thanks