Radom image imagebrower

Hello, on my website, I have imagebrowser gallery mod on this page https://mysite.com/gallery :
[imagebrowser id=2]

If i go here ( https://mysite.com/gallery ) the first image showing is https://mysite.com/gallery/(?pid=1) then if i clic on next, it is https://mysite.com/gallery/?pid=2, etc.
I would like to have a random image on the root ( https://mysite.com/gallery ) and too when I clic on “next”.

I tried this :
[random max=1 id=2]
But when I go on my root gallery I havnt imagebrowser view.

I need help plz.
Thx.

https://www.ads-software.com/extend/plugins/nextgen-gallery/