The manual that comes with the signals explains it briefly, but I'm not aware of any detailed tutorial. If you download my route Jönköpingsbanan you will find many examples of how the signals are placed, ranging from small stations with just one diverging track, to Stockholm C which is a bit (!
) more complex.
If you are making a real route you could try and find videos and photos online to see what the actual signals look like.
In general you need to figure out which aspect you want the signal to be able to show. For the H5, the lowest of the five lamps would only be used to signal "vänta kör 40" ("expect 40"), so you would only need the H5 if the next signal is able to show "kör 40" ("drive 40"). I hope that makes sense.
