Pretty self-explanatory. Like the Size and Position parameter, but rotating from the move circle thingy in the Text filter. Rotates it easily and simply.
Use a separate filter. In case you added the text filter to an image or video, use a Text clip instead (Open Other > Text). We are not going to be adding many unrelated things to the Text: Simple filter. We will only add more things that are unique to text.
Text: Advanced?