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Editing Global Parameter Values

Use the Opening GP Dashboard to edit supported Global Parameter values directly from Parameters Manager.

Ribbon: Flow → Content → Parameters Manager

Before You Start

Open the Revit project containing the Global Parameter you want to change.

Changing a Global Parameter can update every associated element in the project. If you are unsure what the GP controls, use Review Associations or Revit's native Global Parameters editor before changing its value.

Project-wide effect

A Global Parameter is not an isolated dashboard value. Editing it can change multiple windows, doors or other associated elements throughout the Revit project.

Identify an Editable Value

  1. Open Parameters Manager.
  2. Find the required GP in the dashboard grid.
  3. Look for the edit indicator beside its Current Value.

The edit indicator identifies values that Parameters Manager allows you to edit directly.

Edit a Value

  1. Double-click the editable Current Value cell.
  2. Enter the new value.
  3. Press Enter, press Tab, or move away from the cell to commit the edit.
  4. Select Audit → Refresh Dashboard.
  5. Confirm that the displayed value matches the intended result.
  6. Check representative associated elements in Revit where appropriate.

When the cell edit is committed, Flow sends the change to Revit and applies it inside a transaction.

Values You Can Edit

The current dashboard allows direct editing for:

  • Text values
  • Length / Number values represented by a Revit double value

The dashboard currently treats these as read-only:

  • Integer / Yes-No
  • Element
  • Unsupported or unknown value types
  • Zero Window Sill Height

Use Maintenance → Open Native GP Editor when you need to edit a value that Parameters Manager does not expose.

Entering Lengths and Angles

Length / Number

Enter non-angle double values as millimetres.

For example:

  • Enter 20 for 20 mm
  • Enter 2000 for 2000 mm

Angles

When the GP name contains the word Angle, enter the value in degrees.

For example:

  • Enter 15 for 15 degrees
  • Enter 90 for 90 degrees

Name-based interpretation

The dashboard identifies an angle from the GP name, not from a separate user-selected unit option. A double GP whose name contains Angle is treated as degrees; other double GPs are treated as millimetres.

Use Revit's native editor if that interpretation is unsuitable for the parameter.

What Happens Automatically

When an edit is committed, Flow:

  1. Retrieves the GP from the current Revit project.
  2. Interprets the entered text according to the displayed value type.
  3. Converts millimetres or degrees to Revit's internal units where required.
  4. Sets the new Global Parameter value.
  5. Commits the Revit transaction when successful.

Flow does not automatically rescan the dashboard after a successful edit. Use Refresh Dashboard to verify the stored value.

Expected Result

After a successful edit and dashboard refresh:

  • The GP displays the new value.
  • Revit updates supported associated parameters and elements.
  • Any resulting model changes are visible in the relevant Revit views.

The extent of the model change depends on how many parameters are associated with that GP.

If the Value Does Not Change

Check the following:

  1. Confirm that the cell showed the edit indicator.
  2. Use a plain numeric value without unit text for a length or angle.
  3. Commit the cell by pressing Enter, Tab, or moving away from it.
  4. Select Refresh Dashboard.
  5. Confirm that the GP is not controlled by a formula or another Revit restriction.
  6. Try the same value in Revit's native Global Parameters editor.

Invalid numeric input is rolled back and may not produce a separate validation message. The typed text can remain visible until the dashboard is refreshed.

If Revit rejects an otherwise valid update, Flow displays an error identifying the GP that could not be changed.

Current Limitations

  • Integer and Yes/No values are not editable from the dashboard.
  • Element-valued GPs are not editable from the dashboard.
  • Zero Window Sill Height is deliberately protected from dashboard editing.
  • Double-value unit interpretation is based partly on the GP name.
  • Invalid numeric input does not currently produce a dedicated input warning.
  • The dashboard does not refresh automatically after editing.
  • Revit may reject formula-controlled, reporting, read-only or otherwise constrained values.