Dynamic Pricing for WooCommerce

Hi there,

There are 2 rows on “Products – Add New Product – General”.
1. Regular price
2. Sale price

I would like to know if it is possible to make a few more rows in here.
1. Regular price incl. Tax
2. Regular price excl. Tax
3. Sale price incl. Tax
4. Sale price excl. Tax

If the price is set in box 1, it have to fill it in authomaticly in row 2 excl. tax.
If the price is set in box 2, it have to fill it in authomaticly in row 1 incl. tax.

Same for the Sale pricing ; )

Cheers,
Selim