activate activation batch client code codes create digital generate product sell store stuck

Can you activate more than one code at a time. Let's say I want to sell a digital product, but want to generate 100 codes and store them. Can I create batch activation codes? or am i stuck doing this one at a time. ALSO, is there a way to see if the codes have been used once the client used them.

Yes, you can do that. Please see https://www.e-junkie.com/ej/help.selling-codes.php