Hi Les,

Sorry to only get back to you now.
1. You can delete a shop by clicking on "Edit Shop" > "Advanced Settings" > "Shop Overview" > Delete
2. You delete or add products in the user area and not directly in your shop - can you maybe be a bit more precise about this question? Thanks
3. You can have your customers edit products by clicking on "T-Shirt Designer" > "Activate T-Shirt Designer" - your customers can then place the design to their preference.

Let me know if you need more help.

Best,
Lena