Whether you're in a conference, or teaching a course on the use of a program or application, you'll be interested in having a tool like Demo Helper.
Through a combination of keys, an option will be activated that will allow you to paint on the screen using the mouse, being able to highlight, point and paint colored arrows on any area of the monitor.
Demo Helper is very useful if you are creating a presentation or help video, and you want to be able to highlight and point to certain areas without any limitation.
And since Demo Helper barely consumes resources, and stays in a discreet background, it will not interfere with other activities you are doing. Check your utility for yourself, downloading it for free.
You can free download Demo Helper 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.