 <h3>Selecting Nodes</h3>
            <p>
            To select one or more nodes, press and hold the left mouse button, a red selection box will appear.
            You can then move the mouse while holding the left mouse button pressed to select the nodes you want.
            Release the mouse button when done and the selected nodes will remain highlighted. To deselect the
            nodes, click any empty space in the editor.
            </p>

            <h3>Moving Nodes</h3>
            <p>
         