How to Select All and Tick the box for configuration at "Select Test Configuration" in MTM VS2010

Tired to click one-by-one on the box to set the configurations for each test cases "Select Test Configuration" in MTM. So here is the how the shortcut works.

1) Select all test cases that need to configure. Verify Contents template will be displayed like below snapshot. "Select Test Configurations".

2) Tick on "Enable range selection...." at the bottom checkbox.

 3) Click on selected box as starter. Verify the box line is [........], like below snapshot.

4) Enter Shift on keyboard while click on selected box as end section. Verify the other box line is in bold line

 5)  Click on the box with [.....] dot line. Verify the box highlighted is checked/ticked.