Can I extend my multiple entry visa in Thailand instead of doing a border run?

The original poster is currently in Thailand on a multiple entry visa, which allows them to stay for six months with the requirement to leave every two months. They are inquiring about the possibility of extending their stay by one month at an immigration office instead of making a border run after 4 months. However, responses from the community clarify that this is not possible; the poster will need to leave Thailand and re-enter after 60 days to continue their stay and may have to perform a border run.