Blender Market - Pivot Transform helps you change the position of the pivot point as needed. You can align it to the normals of the desired polygon, rotate and move it, or
![How to use Pivot Point Only Origin in blender 2.8 beta - Basics & Interface - Blender Artists Community How to use Pivot Point Only Origin in blender 2.8 beta - Basics & Interface - Blender Artists Community](https://blenderartists.org/uploads/default/original/4X/0/c/0/0c0b4566b39842d40b03105605e856eb7cfb9707.jpeg)
How to use Pivot Point Only Origin in blender 2.8 beta - Basics & Interface - Blender Artists Community
![edit mode - How to change the pivot point of scaling to the center of selected vertices in Blender 2.8? - Blender Stack Exchange edit mode - How to change the pivot point of scaling to the center of selected vertices in Blender 2.8? - Blender Stack Exchange](https://i.stack.imgur.com/JCGo7.png)