Yes, My Screen Recorder Pro has a highlighter function for exactly this use. Whenever you have to explain an important point use the Highlighter to draw you users attention.

To highlight a point while recording just press 'F6' or use the key combination which you have set for screen draw in Settings. Then press 'H' to select Highlighter and use the mouse wheel to increase the size of highlighter. Next, drag the highlighter on the respective point on screen to highlight it.

You can also change the highlighter color using keyboard keys. This image shows the keys which you can use for screen draw: