Add ability to edit cart item when using TM Extra Product Options

[Former user]

When using TM Extra Product Options with a simple product the customer is presented with an ‘Edit Options’ on the cart item, clicking it takes the customer back to the product with the data retained and all the fields filled out. But when using with an Appointable Product the option is no longer and instead to edit their cart item they have to remove and completely start again. This could be problematic when the user has already taken the time to fill out many options and fields.