Wix Stores Request: Conditional Product Options

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Currently, it is not possible to set up conditional product options in order to sell certain option combinations. 
What are conditional options?
Conditional product options are used to sell option combinations, for example, to sell small t-shirts only in blue and large t-shirts only in yellow. When a customer selects the first option (e.g. size small) they can only select the color blue.
As a workaround solution, you can create separate products for each set of options. For example, the small, blue t-shirt is one product and the large, yellow t-shirt is a separate product.
We are always working to update and improve our products, and your feedback is greatly appreciated.