how can i add rates for tshirt .

for example Front is 10 $ 

adding Back will add 2$ 

and adding Sleeves will add more 2$

To achieve this you should go into the relevant view in the product builder > view option > Miscellaneous> Under this section you can add the price for that view as per your need. Repeat the same process for other views as well.

In this case all view are visible 

1) Want front as default view. (Only front view visible)

2) customer can add back or side view on clicking on button. (Selected view would be visible only when selection is done)

How can I achieve this