Hello! I am hoping to add tiered/sliding scale pricing to my website where I sell physical products. I am hoping to have a checkout process by which people can insert how much they would like to pay for a product, or have 3 tiers of pricing that folks can chose from. I new to the squarespace world and completely lost! I have read many things online but still can't figure out the step by step approach to make this happen. Any help would be GREATLY appreciated!