Can I use an overseas bank account for Thai retirement visa requirements and where should I apply for it?

The user inquired about using an overseas bank account as proof of funds for a Thai retirement visa and whether to apply at the Thai embassy in Japan or enter Thailand first. Responses indicated that an overseas account can be used when applying at an embassy but not for applications made within Thailand, where a Thai account is required. Additionally, it was advised that entering Thailand on a short-term visa without a long-term visa would prevent opening a necessary Thai bank account for the visa application.