I miss this option. The Xfce panel is either displayed permanently or hides and shows when "autohide" is enabled.
Since I've recently tested Docky, which features an intellihide option, I would love to see this for the Xfce panel.
Docky is very appealing, but IMHO it brings too many dependencies and I'd prefer to stick with the Xfce panel.
I'd like to hear your opinions on this.
I've discovered this workaround:
(German language only, sorry.)