Create a video of SU operations

How do I create a video of my movements using SU to describe a problem I am having

Regards
Geoff

capable: ScreenToGif
easy peasy: GifCam

all free

Or Licecap (for either Mac or Windows) - also free.

See https://licecap.en.softonic.com/

or direct from the developer: Cockos Incorporated | LICEcap

Licecap it is,thanks for the link