Hulk Custom Fields Metafields

Finally found a way to set custom fiels for the products! Coming from a more flexible tool like WordPress, Shopify feels very limited. With Metafields, one can finally customize the templates and make every product page different. I do understand the limitations of the meta-fields to be only numeric or strings BUT this tool could have a wrapper to store multiple types like dates, even if they are just strings internally, but could help a lot with the administration of the products. If that wrapper could be added, it would be a killer app! (and of course, have a 5 stars score)