To have the "Favourite" feature for user to add their favourite product (B2C, B2B)

Everytime user may browse through the website and found something interested in, but can't decide whether to order or not yet. With Favourite feature, user can come back later and place the order once decided, rather than to forget what they wanted before and browse through website again. Currently, the "Saved" feature only allows 1 time product, once it's added to Cart, it's removed.