Right-click and select “Special Tools…” (or use the keyboard shortcut shift+M). You can rotate objects with a resolution of 0.1°.
Hi, unfortunately I have to edit it again.
I can not understand why there are different directions of rotation. Yesterday I published a repository where the 0° point is on the right and counterclockwise are positive and counterclockwise are negative angles.
Today I rotate a group because the 0° point is at the top and clockwise the angle becomes positive.