Tool to set up elements of the guest session

Users should have a tool to modify the Guest Session.

The reasoning behind this is to customize the Guest Session account for certain needs:

--Hiding menu elements: This could work in a manner similar to the Edubntu menu editor. This is mostly useful to keep options at a strict minimum. For example, show only the web browser, text editor and the music player.

--Adding/Removing icons to the panel or desktop: Same principle as the above idea.

--Change the amount of workspaces: Let's face it, people who are not familiar with the concept of workspaces won't use anything other than the default. Alternatively, only one workspace in the Guest session as its goal is to be of temporary use.

--Change the theme/wallpaper: As a quick visual cue someone is using the guest session. A different theme or wallpaper could help nervous users see who's paid attention to the "use the button at the top right area of the screen to go to guest" speech.

The point being: Desktop and sound themes can be changed, default packages can be removed, the file browser from one desktop environment can be added to another, but there is no known way to change the guest session.