I have to set all the products price as same ex $30.00 in a single category,but when they choose more than one product from same category totalprice on cart should be $30.00
like
product category quantity price
cap1 attaches 1 $30.00
cap2 attaches 1 $30.00
cap3 attaches 1 $30.00
-------------
toalprice : $30.00