Set Pivot (Edges)

Use the Set Pivot tool to move the pivot point of this Mesh to the average center of the selected edges.

Tip: You can also use this tool with the Ctrl/Cmd+J hotkey.

Centering the pivot on selected Edges

In this example:

Left panel: The pivot point of the door is at its bottom-left corner.
Middle panel: Two edges are selected on the opposite side, so the Set Pivot tool changes the pivot to the center of those top edges.
Right panel: The pivot point is now at the top right, even when in Object editing mode.