The previous post touched on how to do fireproofing, and the ability to copy linework from the editing command (in that case it was a revision cloud) and paste it back into your drawing as linework. Here is another example of how you can use this ability.
The method also works for other things. Say you have a hatch region around areas of your building highlighting the extent of work on the drawings. You may want this region hatched in some views but not in others, instead just showing the linework. You already spent time drawing the boundary line so why should you draw it again?
Thanks to Revit's internal coordinate system, you can use the copy-paste aligned to view command on virtually anything and have it show up in the same place regardless of a differing scale between the drawings.
Say you wanted to copy a hatched region from a 1/16" area plan for the extent of work, copy the region, use the copy-paste aligned to view command and paste it onto a plan of a larger scale. If you only want the boundary line, go into the edit mode for the hatch region, select all the boundary lines, copy them to the clipboard, exit out of the edit command and delete the hatch region. Then paste aligned to view and the border of the hatch region will appear in the exact same spot at the exact same line type as it was as the boundary for the hatch region, except this time it is just drafting lines. Works exactly the same as copying the linework from a revision cloud and having it show up as lines.
Pretty cool hey!
