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Considerations When Using Design Options
The following topics describe important considerations when working with design options.
Unsupported Elements for Design Options
Levels : You cannot add levels to a design option. If you add a level to a building model while you are editing
a design option, Revit Architecture adds the level to the main model. The level displays in halftone, indicating
that it is not part of the design option.
Views : You cannot add views to a design option. However, you can dedicate views to design options .
Annotations and details : You cannot add view-specific elements (such as annotations and details) to a design
option. View-specific elements belong to the views in which they are created.
If you add a view-specific element while you are editing a design option, Revit Architecture adds the element
to the current view, not to the design option. The view-specific element displays in halftone, indicating that
it is not part of the design option. To see the view-specific element
and the design option, change the design
option settings for the view. (See Checking the Design Option Settings for a View on page 1253.)
To annotate or detail a design option, dedicate a view to the option. Then add annotations and details to
the view. (See
Annotating and Detailing Design Options on page 1249.) View-specific elements can reference
elements in a design option. For example, you can dimension elements in a design option.
Referencing Elements in Design Options
In Revit Architecture, elements can reference each other in many ways, including the following:
■ Explicit constraints (such as locked alignments and dimensions) guarantee that the defined relationships
will be maintained. Conflicts cause errors and must be resolved.
■
Looser constraints (such as dimensions and alignments that are not locked) are often maintained unless
a conflict occurs, in which case these constraints may be removed without notice.
■ Implied constraints (such as a wall attached to a roof, or 2 walls joined at a corner) are also maintained
unless a conflict occurs.
These explicit and implied constraints require that each element knows about the other. That is, one element
must
reference the other element.
When you are referencing elements in design options, consider the following guidelines:
■ Elements in the main model and in the primary option can reference each other.
■ Elements in a secondary option can reference elements in the main model. See Selecting Elements in
Design Options and the Main Model on page 1247.
■ Elements in the main model cannot reference elements in a secondary option. Therefore, elements in
the main model do not change their shape or properties when you are editing a secondary option. For
example, if you sketch 4 walls in the main model and then sketch a roof in a secondary option, the walls
do not regenerate and attach to the roof.
■ If main model elements need to update with and reference elements in secondary options, move the
main model elements into each design option (or selected options) in the design option set. Then edit
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