I thought I might have finally found a solution to my ecommerce problems with OscMax - but now after installing I am not sure?

I have a shop that sells medical scrubs. When someone purchases a set of scrubs I want to also offer them the option of adding custom embroidery to their order which would include adding a text input box in the options.

How can I accomplish this?

I can get the size, color, and everything else no problem... but how can I add 2 text input boxes that will add $5 per line to the product options?