Sub-window options are available in the Profile Window Options dialog; select an item in the Sub-windows list and then click on the Options button; a double click on the the list itself has the same effect. Sub-windows can be added and removed from the list with the Select button. You can also access options by right clicking or double clicking on an existing sub-window.
Height (edit box, droplist)
This value defines the height of the Profile sub-window.
If you choose height in characters (chars) the actual size can vary between screen and print or PDF. Use mm. or in. to make a reproducible Multi-Plot.