What is the process for applying for a NON-O family extension in Thailand?

CW report today, NON-O family extension. Arrived 5:45 AM and was number 10 and 11 in the queue in front of building entrance. Spouse must also get queue ticket. Then, proceed inside at 6 AM. At entrance you must to do COVID registration or use Thai Chana with your smartphone (much faster). First 30 applicants seated in front of entrance to Immigration Division 1 office doors, others go along long line around office. At 7 AM food court opens at ground floor and we had breakfast. Food court now accepts contactless payments by QR code.

Doors to immigration office opened 8 AM and people proceed inside, much less crowded. I get queue ticket and wait for invitation. Some assistant girl walked in front of people who waiting and asked about kind of extension, then give to me 3 additional blank forms:

1. Overstay warning form to be filled and signed, this one is familiar.

2. Type of extension rules and case for termination (unfortunately I can’t take photo of this one new form. The purpose I assume to warn the reason for extension must be true)

3. “Warranty” form for Thai spouse where she/he sign the responsibility for you 🙂 this form was familiar and my wife filled it every time.

After all documents was submitted and fee paid, officer asked my wife to do copy of signed papers, and she rush to ground floor where copy office do this.

Then after my wife returned from ground floor, documents submitted to section head, and later we was called to sign stamped TM7 form in the corner. Then I get my passport back with usual consideration stamp, and will need to visit again to get remaining extension.

Whole application takes 1 hrs and we out 9:30 AM.

Note that copies of current 90 days report, departure card, printout of current TM30 screenshot from system, all was accepted and stamped, so this is important to have them in application “package”.