Hi. I'm thinking about upgrading to pro, but first I need to know if I can control what tools my customers can use for each product?

I want them to be able to edit premade designs and not be able to upload themself. I also want to enable my customers to change the image I already uploaded to the design so they can use their own, but only in the products where there is an image.

And also - Can I as an admin have all the tools enable so I can make a premade design, even when the tools are disables for my customers? 

I hope it makes sense.