How can I change my education visa to a non-B teaching visa in Thailand, and can I volunteer as a teacher with a volunteer visa while obtaining a work permit?

The user is seeking information on the process of converting an education visa to a non-B teaching visa in Thailand, and whether it's possible to volunteer as a teacher on a volunteer visa while still obtaining a work permit. Comments suggest that obtaining necessary paperwork from the school or organization is essential for both visa changes and volunteering.