I'm new to Blender and am looking for guidance on how to do a simple task for a research study that I will be running.
Basically, I have a short video (<5 seconds long) of a dog barking. I wish to insert a small, flashing white dot (appears for 500ms) onto the video as a location and time that I choose. (This sounds random, but it's important.)
Could someone please talk me through the steps to do this? Or point me to a tutorial about something similar?