Although the layout of windows on a display is controlled by the window manager that the user is running (described below), most X programs accept a command line argument of the form -geometry WIDTHxHEIGHT+XOFF+YOFF (where WIDTH, HEIGHT, XOFF, and YOFF are numbers) for specifying a preferred size and location for this application’s main window.
In a terminal type cinnamon-menu-editor
Select Terminator | Properties
Fill in bij command: after the command terminator –geometry 1200×800+800+125 (example)
Click OK.