Hello,
I have a question about the behavior of FeatureManager Tree.
After creating a part using Extrude, when I click on Boss-Extrude, the Dimensions are not displayed, but only the entire object is highlighted. Only when I double-click on Boss-Extrude are the Dimensions displayed. However, for other parts, the behavior is different, when I first click on Boss-Extrude, the Dimensions are displayed. Could you explain to me why this is happening? I am also attaching the file. Thankx for reply. 

One click.

Double click