ID:2880129
 
Resolved
Map editor: Alt+click with most tools will select the clicked object so its properties can be edited.
Applies to:Dream Maker
Status: Resolved (515.1634)

This issue has been resolved.
Right now you are able to quickly select an object using ALT. But for some reason it won't be treated as an Active Object.

Its vars won't be displayed in the side panel without first going to RMB -> The Object -> Make Active Object.

Suggestion: quick selection (ALT) should make the selected object an active object.
Following up on this, I think this makes good sense, although in selection rectangle mode it could be a problem. For that reason I would suggest that the editor be forced out of selection rectangle mode when doing this, if it doesn't already.
Correct, selection mode does not allow you to select a single object, which is fine.
Lummox JR resolved issue with message:
Map editor: Alt+click with most tools will select the clicked object so its properties can be edited.