Also, from my friend again: I know O1 visa is very specific for example O1 for producing or or O1 for acting. If your O1 is for producing you cannot do acting

Also, from my friend again: I know O1 visa is very specific for example O1 for producing or or O1 for acting. If your O1 is for producing you cannot do acting under that visa. Currently I have only enough experience only for producing. But Ideally I want to get O1 for producing and acting. My question is if you have O1 for producing, while you are at O1 you want to apply O1 for producing and acting, if I get denied is my O 1 for producing still good or it get waive? Or can I just petition to add acting in my current O1? If I petition to add acting and get denied does my O1 as a whole gets cancelled?