AppImage auto-start

Linux (greenhorn)

I have a couple of AppImage apps on my Linux Mint 20 laptop.

I’ve figured out how to auto-start an AppImage through the Startup Applications app.
And much to my surprise, it works fine.
“/home/kj/Apps/Icedrive_Portable_Linux-x64.AppImage” --background

However, the icing on the cake: get it to auto-minimise to the icon tray.
Any ideas please?

(Or does it depend on the app and how it takes parameters?)

Yes. AppImage has nothing to do with this.