RVT_ELEC_01101 Autodesk Certified Professional in Revit for Electrical Design

When working in Autodesk Revit for MEP Electrical Design , lighting fixtures can be either hosted (such as ceiling-hosted or wall-hosted) or non-hosted . The movement of lighting fixtures in relation to linked model elements—like ceiling grids—is determined by the hosting condition and alignment constraints applied to those elements.

According to the Revit MEP User’s Guide (Chapter 24 “Ceilings” and Chapter 50 “Rendering”), a ceiling is a level-based element . You can create it on a specified level and host ceiling-based families such as lighting fixtures. When a ceiling is modified or repositioned, the hosted lighting fixtures will move with the ceiling itself , maintaining their relationship to the host surface. However, when ceiling grid patterns are changed or moved in a linked Revit model , the movement of those grid patterns does not automatically propagate to hosted elements in the electrical model unless those elements are directly linked or constrained to a movable reference plane.

As described:

“Ceilings are level-based elements… When you create a ceiling, you can host components such as lighting fixtures on its face. Hosted elements remain associated with their host even if the ceiling is modified.”

And further in the glossary section:

“Rehost: To move a component from one host to another. For example, you can use the Pick New Host tool to move a window from one wall to another wall.”

This confirms that a hosted light fixture maintains its attachment to the host element (the ceiling) but not to the grid pattern itself. Grid movement within a linked ceiling model does not alter the position of lights unless they are manually re-hosted or alignment-locked directly to a specific geometry within the host model.

Therefore, the correct interpretation is that when ceiling grid patterns move within a linked Revit model , the lights placed in the electrical model do not follow the grid pattern movement automatically. They remain stationary relative to the ceiling surface, provided they are hosted correctly.

This behavior reflects Revit’s parametric relationships — “hosted elements maintain dependency only on their host, not on graphical references like grids unless locked via constraints.”

In Autodesk Revit, Design Options are used to explore multiple design alternatives within the same project environment. This feature is often employed by electrical designers to model different lighting layouts, circuiting approaches, or equipment placements without duplicating the entire project.

When an additional design option is created within the same option set , and the designer needs to include all the same elements that already exist in another design option, Revit offers two effective ways to duplicate these elements while preserving their type, parameters, and host relationships.

According to the Autodesk Revit MEP User’s Guide (Chapter: Working with Design Options) , it clearly describes:

“To create a copy of an existing design option within an option set, open the Design Options dialog box, select the desired option, and click Duplicate . This creates a new option containing identical elements and maintains their relationships and constraints.”

This confirms Option C as correct because duplicating an option from the Design Options dialog automatically replicates all its elements into the new design option within the same option set.

Furthermore, the guide continues:

“Alternatively, when working with a specific design option view, you can use the Copy to Clipboard and Paste Aligned > Aligned to Current View commands to duplicate selected elements into another active design option. These elements are placed in the same location and remain associated with the new design option.”

This validates Option D as the second correct method, allowing manual duplication of elements between options while keeping spatial alignment intact.

Other options listed are incorrect for the following reasons:

A (Drag and Drop) is not supported between design options; it only works between views in the same option.

B (Reveal Hidden) only displays hidden elements; it doesn’t expose design option geometry for copying.

E (Add to Set) transfers elements into the same design option set, not between individual design options.

Therefore, the two valid and Autodesk-confirmed methods to duplicate all elements between design options are:

C. Duplicate from Design Options dialog , and D. Copy/Paste Aligned to Current View.