How do i move axis to the center of my object?

[CreativeDetail]

When i imported my scan to reality capture, the initial object axis sphere was on the right side of my final, edited object. When i exported to sketchfab, the object had a fixed rotation point on the right side.

I Would like the rotation point to be in the center of my object, so when i rotate it with my mouse, it does so equally on each side.

Here’s a screenshot of what i’m talking about: Screenshot by Lightshot

Here’s the object on sketchfab, so you can see what i mean by fixed right axis:

[OndrejTrhan (otrhan)]

Hi Creative Detail,
this pivot can be placed to a wanted place on the model by mouse left double click.

[CreativeDetail]

Thank you very much Ondrej!