1. Choose 3x3
Select the 3x3 preset or 3 x 3 grid mode so the image is split into nine square tiles.
Guide
How to post a 3x3 grid in the right order.
Use the 3x3 preset, keep Instagram grid post order selected, then publish file 01 first and continue until the last tile. The numbered files match the final profile layout.
Steps
Use the same sequence every time.
2. Keep Instagram order
Set download order to Instagram grid post order. The tool numbers the files for profile posting instead of simple reading order.
3. Publish 01 first
Upload file 01, then 02, then 03 until the last tile. The profile grid preview shows the final layout after all posts are live.