Have to enter multi variants each time for new product

[websmith]

Joomla 3.4.8 and VM 3.0.12

Hello VM'ers. Im having an issue with my multi variants. I have 3 sizes, small, medium and large. When large is selected I need +$2 to be added to price. I cant seem to make this work as a string, so I use multi variant. This seems to work, but I have to type the info into ramification for each product, then add new child product and then add the new price for the large, for each and every product.

This happens even though I have a custom field variant already created, I have to type in small, medium large in upper right box and then add product child and increase price for related option.

So I guess Im trying to ask is there an easier way to do this so I can apply it to a number of products without having to type the info in new from scratch each and every time.