To compound matters, if the home run is a multi circuit then you cannot manually modify the number of wire ticks (see attached jpg). On a single circuit home run I can modify the number of wire ticks for each wire (hot, neutral, and ground), but as soon as I make it a multi circuit home run this is disabled.
What is the purpose of the Tick Marks=Calculated/On/Off property? I can tell when the property is off the tick is not displayed, but Calculated/On do not seem to have any effect.
I also tried creating a new wire type that had the "Share Neutral Conductor" and "Share Ground Conductor" unchecked. This seemed to have no effect, so I am not sure what these Family Parameters govern.
Is there something I am missing or is this a Revit limitation/oversight?
Were you ever given any response to this? I just had this question come up, and I don't see that it is any different in 2012 MEP. What did you end up doing?
I am also dealing with a similar issue with the tick marks. I am working in Revit MEP 2013 and there still doesn't seem to be a way for Revit to produce the desired result on its own. I believe this is an instance where I am just going to have to "fake" the information. In my case I have used a j-box family with multiple connectors for the multiple loads so that it shows up correctly on my panel schedules. I will have to manually draw the home run and to represent the number of nutrals and hots in the order that I want and then creat a group out if those elements. It will be a visual represnetation only and I will have to use a standard piece of annotation to describe the home run information. I don't know of any other way to show the tick marks for multiple circuits such as these. I would be interested to know what others have done to work around this issue.