EA-PSM allows to split scheme between few project pages and link split line ends. It can be done by dragging needed elements outside of the single project sheet area:
Hint: double click on one end of the line will take you to the other end.
Ends of the splited lines are indexed and describes the section of the other line end at the drawing. Line position is indexed as Identification number, as defined at project properties, sheet number and column (numbers) and rows (letters) as depicted:
Page links format can be freely defined at File → Project properties. User is able to not only select format, but change elements order, symbols that seperates it, or write additional needed text:
Split line is automatically straight. Side of the bus that arrow is pointing can be changed by selecting line and clicking Tab on the keyboard. Line can be freely dragged as a simple line and split into polyline. To reset line into its automatically defined position, user should right click on the line and select Graphics → Reset line split positions.