Can I convert my Non Immigrant ED visa to a Non Immigrant B visa without leaving Thailand?

Hey guys! I'm an Indian resident on a Non Immigrant ED visa in Thailand. I have been a full time student here for over year and was recently offered a job. I have been told that I must leave Thailand once the company provides me with the necessary documents and apply for the Non Immigrant B Visa in order to return. I have been told however that with the correct documentation, it is not necessary to leave Thailand at all and that I can simply have my student visa converted to a work visa. Does anyone know about the conversion process? This is a BOI company if that is helpful.

Edit - Typos and formatting