This way,
From my schedule, i exported pipes "Type" wise and diameter and got the lenths in meters. say 50dia vent pipe is 138 mts (attached Excel Screen Shot).
Now in Revit model when we click one element and then right click, we get "select all instances" visible for the view or entire project. If i pick visible for view, in my properties pallet shows the value and right bottom cornor near to filter symbol there is a value.
Model view of screen shot attached. In model view i want to reflect 50dia vent pipe, visible for the view, remaining elements to be hidded but my Arch. model should be visbile. so than i can understand or i wanted to show this to my boss in the monitor screen. something like filter command we need to todo the task or i dont know. say in Autocad, the block name willbe filtered and we can see how nos. I hope i explained to you.