After reading my own post (yes I do this once in a while), I got to thinking about the whole hosted element thing...and had a few more thoughts...scary, ain't it?
Now that we've had a chance to start teaching the 2010 release, a few things are coming out of the engineers. A common thread is related to the AutoCAD way of doing things. When a client wants the RVT file as a deliverable, it usually will mean the engineer will have to place more obejcts in a project. Since I was already thinking about typical layouts, I asked the firm I was teaching how they did it - and all of their "common layout" jobs meant they used typical to layout common rooms, and did not place receptacles, lights, etc. in every room...but you can't get away with that when the deliverable is the model file.
So, a couple of points came out of this -first, you CAN copy hosted elements - for example, select all of the receptacles in a room (the OOTB ones are hosted elements), and then use the copy command. Make sure you select a common snap point (such as endpoint or intersection) that appears in every room. If the rooms aren't 100% identical, that's not that big of a deal - you simply select an object, then use the modify tools to re-host it to a new face. What doesn't work is putting hosted elements into a group - once in a group, they can't properly place into other locations in a project. We've also toyed around with just placing a connector per the last post, but I think the main point we need to make sure that all Revit MEP users understand is that you don't do it or quote it the same way you did an AutoCAD job. Be prepared to allow for more time to get the common objects placed in every room - and once you get proficient, you'll be buying that time back with time savings made in other areas - like using the schedules, autolayouts for duct, pipe, wire, etc.,...
And there's still more to follow...
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