Getting started with Parameter Revalue
Install Parameter Revalue, run your first bulk edit from the preview, then build a conditional rule and save it as a preset.
Parameter Revalue opens from the BIM Hive tab on the Revit ribbon, in the Parameters panel. The window is modeless, so it stays open while you keep working in the model. Nothing is written to the project until you apply, and the preview shows every element that would change, together with the ones that would be skipped and why.
Installing Parameter Revalue
1. Download Parameter Revalue from the marketplace and run the installer. 2. Start Revit 2024 and open a project. Parameter Revalue works on a project, not on a family file. 3. The first time Revit starts it asks whether to load Parameter Revalue — click "Always Load". 4. On the BIM Hive tab of the ribbon, in the Parameters panel, click Parameter Revalue. The window is modeless, so you can leave it open and keep working in the model.
Choosing what to edit
Set the scope first: Active View, Entire Model, or Current Selection. Then narrow by category if you only want doors, walls or pipes. Choose whether you are editing Instance parameters, Type parameters, or Both. A type parameter is marked with a warning in the grid, because changing it affects every instance of that type. You can search the parameter list by name, or search by the values the parameters hold when you know the value but not which parameter carries it.
The simple operations
Five operations cover most edits: - Replace text — find a string and replace it, optionally case sensitive. - Add prefix — put text in front of the existing value. - Add suffix — put text after it. - Set value — write the same value to every element in scope. - Clear value — empty the parameter. Fill in what you want and click Preview. Nothing is written to the model until you apply.
Building a conditional rule
Use Advanced conditions when the edit should only touch some of the elements. A condition compares a parameter value, or the element's category, using one of thirteen operators — equals, not equals, contains, does not contain, starts with, ends with, is empty, is not empty, matches a regular expression, and the four numeric comparisons. Add several conditions and combine them with And or Or. Groups can be nested, so "doors on level 2 where Fire Rating is empty" is a single filter rather than three separate passes. Give the rule a name and click Save as Preset to reuse it later.
Chaining transform steps
A parameter transform is a list of steps that run in order, so you can clean a value and then reformat it in one pass. Text steps: trim, collapse repeated spaces, UPPERCASE, lowercase, Title Case, remove a prefix or suffix, replace the first match or all matches, a regular-expression replace, extract a substring, keep the first N or last N characters. Value mapping looks each value up in a table you fill in. Decide what happens to a value with no entry — leave it unchanged, or clear it. Numeric steps: add, subtract, multiply, divide, set and round, with a decimal-places setting. Type numbers with units if you like — "500 mm", "2.5 m" and "10 ft" are all read correctly against the parameter's own spec.
Reading the preview, then applying
Preview lists every element with its old value, its new value and a status: - Change — the value will be written. - No change — the new value matches the old one. - Skipped, Read only, Missing parameter, Not editable — the row will not be written, and the reason is the one shown. Use Select Affected, Select Errors or Select Unchanged to select those elements back in Revit, or Show in Revit to isolate the matches in the active view. Export CSV writes the whole preview out for checking or reporting. In a workshared model, elements owned by another user are reported and skipped — Parameter Revalue never takes ownership. The apply runs as a single transaction, so one Ctrl+Z in Revit reverses the whole run, and each run is recorded in the local history.