How many indentation sliders are available on the vertical ruler on the left hand side of the ruler?

The vertical ruler on the left-hand side typically features two indentation sliders: the first is the left indent marker, and the second is the right indent marker. These sliders allow you to adjust the indentation of paragraphs in a document. Some text editing software may also include a center indent marker, but the primary sliders are for the left and right indents.