Cycling GMOD Backgrounds?

So, I made these nine backgrounds and I named them “background01.vtf”, “background02.vtf”, “background03.vtf”, etc. I put them all in the materials/console folder. It only shows the first one though, and doesn’t cycle through. How can I fix this?

Here are the pictures if you want to see them

Some script in Gmod stops this. I don’t think it is possible, sadly.