How to modify the orientation of a component (symbol) mark?

By default, any visible component attributes are moved/rotated along with the symbol itself.

To independently set the orientation and location of the mark or text attribute, you will need to right-click on the bounding box to access the 'edit attributes' menu.

Here you can select the 'mark' and enter a custom value to change its angle relative to the symbol.

Using the text anchor (blue filled square), you can move the 'mark' freely anywhere in the diagram.