I installed Ventura and it does not include the feature you are looking for. You can look for another theme that does, or you can add that functionality by modifying this Theme's code. First you would need to determine how you want it to work. One approach is to disable options in the select list based on the selection of another option. Size 7 in this example using the Ventura theme: This approach assumes the user will first pick a color then a size since there is now no way to pick size 7 and see the available colors. The more complex way is to visually show a range of possibilities based on the currently selected options: This allows the user to select whichever options is most important to them first (size or color in this example) and allows you to give visibly of the other possibilities. If you are not fully invested in the Ventura theme then I suggest exploring the other options out there see if there is one that better meets your needs in this area. Good luck with your store.
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