How to pick Objects when modding track?

[satchel]

When I try to edit a track, and go to "Objects," then I am given the tree object, and I cannot figure out how to cycle to the other objects, such as pit garages, etc.

How can I select the other items in the Objects folder, in order to place them on the track?

[Javaguy]

Move the mouse to the far right of the screen- it brings up a menu of objects.

[satchel]

Thank you.