The standing rule with linked datums is that if they intersect the view cutting plane, they should show up in the host. However, Matthew Nelson discovered an interesting inconsistency – for Plan Views, this doesn’t seem to apply when Scope Box has been added to Grids.

In other words, the Grids in the Linked project, when applied to a Scope Box, do not seem to show in the Host project, even if the Host plan view range intersects the Grid elements.

After some experimentation, including testing on Revit 2013, 2014 and 2015, I think I have found the solution:
If the Scope Box in the Link intersects the Level in the Link with the lowest Z value (the lowest level), then that Scope Box and any associated Datum (Grids and Reference Planes) WILL appear by default in the Host.

Got it? So this won’t work:

 But this will:

Download this to see it in action

There are 3 other ways to show linked Grids in a plan representation, even if you can’t modify the linked Scope Box as I describe above:

  • Make a Detail View with Plan Orientation that intersects the linked Scope Box
  • Copy / Monitor the Grids (which will automatically bring in the linked Scope Box too)
  • Use “By Linked View” setting in the Host

Here are those workarounds:

Copy / Monitor

Detail View

By Linked View


The rule is that Walls shorter than 6 feet (approximately 1.83 meters) are not shown as Cut (ie. thicker lines), even if they intersect the cut plane of the Plan View – they are shown in Projection UNLESS they are attached. If they are attached to something (like a Reference Plane), they can be shorter than 1.83 and they will correctly show as Cut in Plan.

As soon as you set the wall properties to Unconnected and Detach its top, it will show in Projection mode again, if it is shorter than 1.83m.

There are at least two ways to work around the fact that a Plan Region will not affect the viewing of Topography elements.  From the AUGI forums (2007):
Alex Page
What about having a ‘cut-plane’ of the view above the topography and doing a plan region around your house? (ie: reverse the logic)

You could try creating a view of the toposurface from a higher vantage point that doesn’t include showing the building. Then overlay this view with the view of the building (overlay on a sheet that is) at the level you want without the toposurface. This way the two views give you the whole but permit the two different cut planes you really need. If you set the toposurface view to wireframe it should give you the look you want, guessing what that really is, though.

Plan regions have no effect on Topography?? [Archive] – AUGI

There is a great video on View Range by Paul Aubin at the link below here:

It is very well explained and I learned some things I had no idea about, like the ‘tolerances’ associated with various elements when using View Range. After using Revit for so long, I’m surprised this piece of important information had ‘slipped through’! I did some searching, and these tolerances are listed in the Revit online help at this link and hinted at in the support information here.

For your convenience, I have copied the information from the Revit help page below:
Additional View Range Rules

  • Model elements located outside of the view range generally are not shown in the view. The exceptions are floors, stairs, ramps, and components that stay or are mounted on the floor (like furniture). These are shown even when slightly below the view range. In addition, fascia, gutters, and edge slabs are shown when their bottoms are within a tolerance of the primary view range bottom.
    Floors located outside the view range use an adjusted range that is 4 feet (approximately 1.22 meters) below the bottom of the primary range. Floors are drawn with the Beyond line style if the floor exists within this adjusted range.
  • Elements that are strictly below the cut plane, but are at least partially within the view range, are shown as viewed from above. Components display according to Family Element Visibility Settings for Plan/RCP. See Managing Family Visibility and Detail Level
  • Walls shorter than 6 feet (approximately 1.83 meters) are not cut, even if they intersect the cut plane.
    The 6 feet are measured from the top of the bounding box to the bottom of the primary view range. For example, if you create a wall with a sloped top face, when the top of the wall is 6 feet away from the bottom of the primary view range, the wall is cut at the cut plane. When the top of the wall is less than 6 feet, the entire wall shows as projection even where it intersects the cut plane. This behavior always occurs when the Top Constraint property for the wall is specified as Unconnected.
  • There are a few categories for which an element located above the cut plane but partially below the top clip is shown in plan. These categories include windows, casework, and generic model. These objects are shown as viewed from above.
  • Visibility in RCP views is similar to plan views with the exception that objects are presented as viewed from below and mirrored.

You can view Paul Aubin’s site at:

I received the information about the screencast from Fear and Loathing in a CAD vs BIM World at