We get this question a lot 🙂
Now, although you cannot assign multiple ticket types to the same seat, you can run Tickera alongside WooCommerce via our Bridge for WooCommerce add-on and create ticket types as variable WooCommerce products. Thorough instruction on this can be found here at about middle of the page. With this, you can create single product as a ticket within which you can have multiple variations with different prices. When such product is assigned to some seat and customer clicks on it, a popup will appear letting them choose variation they want to add to the cart.