by admin » Sun Apr 05, 2015 6:32 pm
hello, to make it ready only or hidden after the first usage, i'd have to create a small customization.
genarally you can add such field using virtuemart shopper field managment using single select, or textfield.
see virtuemart -> configuration -> shopper fields -> add new -> (create your field, we suggest to make it available as a cart field only OR account field only)
best regards, stan