@Mike *****
Yes, as we say so many times, there are huge differences between a visa and an Extension of Stay and therefor it is important to use the correct terminology to get correct answers,
If you try to convert a visa exempt entry or tourist visa into a Non Immigrant O visa the money needs to come from abroad and there is no seasoning,
If you already have a Non Immigrant visa and like to stay longer you apply for the Extension of Stay and therefor money needs to be seasoned at your bank for at least 2 months