About the Rotate View Tool
The Rotate View tool lets you rotate the Drawing view, the same way as you would do with a real animation disc for increased flexibility. This tool can also be used in the Perspective view.
When using the Rotate View tool, you are only rotating your workspace. You can not changing the actual rotation angle of your drawings. Exporting your project will completely ignore the Rotate View angle.
The Rotate View tool has no options in the Tool Properties view.