You have all been so helpful and thanks for bearing with me so far.
My husband has a non immigrant dependent O on a one year extension. He would like to travel to Indonesia for one week long freelance journalism work for a French company, so nothing is based in Thailand. Is he allow led to do this on the conditions of the O visa? Thanks
TLDR : Answer Summary
A husband holding a Non-Immigrant O visa with an extension can travel to Indonesia for freelance work without directly affecting his visa status in Thailand. Despite his visa type, Thai immigration regulations do not govern activities outside of Thailand. However, he should obtain a re-entry permit before leaving Thailand to maintain his visa status upon return.