If you have an image in your family, say a logo for a title blog, you can turn it on/off by increasing and decreasing its "size".
Selecting the image and mapping a parameter looks like this:
It's only necessary to map one of the "size" parameters to make it "zero" high or wide even though my example has mapped both to parameters. As soon as one parameter is "zero" the image can't appear anymore. So I did double the work that I really needed to, didn't take long though, phew!
Here's a video to demo what we are attempting to explain.
Hey, happy April Fools Day! No special post for today...uninspired and lazy! Plus nobody would believe anything I wrote today anyway. The tip is for real!