Enable / Disable Add to cart Button

[neeraj10786]

Hi

i am using 2.5+ joomla
and 2+ virtumart component
few days ago i dis off add to cart button from the back end ( dont know how i did )
2day i want to show that add to cart button under each button. but i couldn't succeed
kindly let me know
how i can enable add to cart button
so that visitors can cart my problem