Have found a little fail in the side bar.
If a name of a part (or group) is a bit longer, it is not possible to close after opening the side bar.
The button for closing is than hidden behind the name of the part (or group).
Here it must be possible that the button is always at the end at the name of the part.
For explain look to the picture below.
Go to Solution.
A bug has been logged against Pathfinder for development to take a look at this issue.
Project Test Eng Adv
Siemens Industry Sector
Siemens Product Lifecycle Management Software Inc.