Can I apply for a visa for my wife and child simultaneously in Jakarta, and is proof of finance of 500k sufficient?

The user inquired about applying for a visa for themselves, their wife, and child in Jakarta, asking if they can apply simultaneously and if a financial proof of 500,000 is adequate. A commenter confirmed that the visa application can be completed at the same time for the wife and child, and that the 500,000 financial proof requirement applies only to the applicant.