Setting up many products with one product display and multiple selection categories
Apologies if this is an old question with an existing question, I'm a newbie and despite searching around, can't find an answer.
Basically, I'm trying to set up the T-shirt type commerce site with only some success. In this example, I have different types of T-shirts from different suppliers. I want to set up a product display for each supplier and allow customers to select the T-shirt spec from pull downs for each supplier. So I have, say, three colours and three sizes from each suppler (red, green, blue and S, M, L). Bulk add products is excellent as it allows me to create products for every combination for a supplier and associate all of them with one product display. In reality, my product combinations are rather large (my example here has, I think, only 9 combinations) This is perfect, except when I want to edit the product display (say I get a better image of the T-shirt or I got it wrong). I can't find a way of editing the product display alone without also having to specify the products in the Products field of the Edit Product display form; as I said, I have a large number of product combinations per product display, more than can be specified in the Edit Product display form so the link is broken for all the products that aren't in the Products field (although the bulk product create managed this perfectly). Any suggestions please (or ideally pointers)?
Secondly, having done this, after the bulk product creation the product selection my customers would see comes up with a single pull down containing the combinations so, back to the T-shirt example, it has Red S, Red M, Red L, Green S, Green M etc. I'd prefer there to be two pull downs, one with the colours and one with the sizes. Again, any suggestions for how this might be done?
Many thanks for any suggestions in advance.