How can I convert my tourist visa to a Non-B and Non-O visa for myself and my family in Thailand?

The user is seeking advice on converting their tourist visa to a Non-B visa and their family's tourist visas to Non-O visas. They mention already having an employer in Thailand who will supply necessary paperwork. A comment suggests that the employer must provide documents for both Non-B and Non-O visa applications and notes that many employers prefer candidates to apply for the Non-B visa outside Thailand, as it may involve simpler paperwork.