You can write your topic however you want, but you need to answer these questions:
**What do you want to achieve? Ive been trying to get this for a long time but never knew how
**What is the issue? I have no idea how to get it
**What solutions have you thought of so far? I’ve looked online and have found nothing
Go to the “Model” tab, and under “Rotation” type in the degrees you want. Remember to have the checkbox checked so you have specific increments rather than having none.
You may also use the arrows in the same box to up the increment by one or decrease the degree by one.
In the image you provided, it appears in the top left corner:
Hope this helped. 
