Specify the Top and Left of object position and Width and Height of object size in units selected from the Units drop-down list.
For the Line object, you can specify the X and Y value of begin and end point.
Select the Keep Aspect Ratio check box to only allow proportional sizing.
Click Reset to Native Aspect Ratio button to restore the table size to the native aspect ratio.
This Disable options control the object behavior while changing its shape and position.