The RptViewerLocation setting defines the screen location to display the Report Viewer in the .NET Report Manager.
By default, the location is in the upper left corner of the Keystroke Program window with the size based on the Keystroke screen size. The format for the value is: X, Y (left,top). The comma is mandatory. For example: RptViewerLocation=-1000,100 places the viewer to the left, and down a little from the main screen. Note: if the specified location is not on an active monitor then it is ignored.
Example: RptViewerLocation=-1000,100