Hello,
You would need to have it visible while recording from screen. If you have a second monitor, you can use the "Draw a selection area" option to record just one monitor and continue working on the other screen. Click the Draw selection area button, which is the first button to the left in the panel, to draw a new screen selection using the mouse. While holding down the left mouse button, move the mouse and draw a rectangle to capture on the desktop. Click the "Select" button to lock in your selection and return to the main interface to start capturing.
Regards.