Attributes Price Impact Help

[a4andy]

Lets say I have a site that sells custom shirts.

 

I create the combos using the generator for my two groups, size & color.

 

Well, lets say I get a new shirt color or a new size, do I have to go through each and every single one of my products and reenerate with the new combinations, that would be a huge mess...

 

Also, if there a way to change the price impact for all products, for example, red shirts cost me $5 now instead of $2. All my price impacts at the same for each product.

 

 

I need to know a sane way to doing this before I start adding loads of products...

 

Thanks guys

Edited October 4, 2013 by a4andy (see edit history)