Open the Trace windows and/or Diagrams/Program Designer Tabs you want to tile in the Workspace.
Click the Tile Vertical 
icon from the Program Designer Toolbar or press 
.
You can adjust the active layout of the Workspace area in Program Designer by tiling any open tabs (Trace windows and/or Program Designer Tabs/Diagrams) vertically or horizontally.
To tile tabs vertically
Open the Trace windows and/or Diagrams/Program Designer Tabs you want to tile in the Workspace.
Click the Tile Vertical icon from the Program Designer Toolbar or press .
To tile tabs horizontally
Open the Trace windows and/or Diagrams/Program Designer Tabs you want to display in the Workspace.
Click the Tile Horizontal 
icon from the Program Designer Toolbar or press 
.