Numbering — Category and Sequence
Structural column Comments T-0028 output verified.

Choose category and range
Open classic Numbering on BimSpeed dot G E N. Pick a category such as Structural Columns. Range offers All In Project, All In Active View, Select Multi and Select One By One. This example uses All In Active View; choose a narrower selection when only one zone should be numbered.

Pick the destination parameter
Select a writable parameter. Here Comments receives the result, leaving the native Mark untouched. The category list also includes Foundations, Framing, Floors, MEP, Rooms, Generic Models, Specialty Equipment and Walls. The parameter must exist on the chosen category.

Set prefix and number format
The example uses prefix T dash, start one, four digits, and step one. The dialog has eight visual ordering rules; choose the direction that matches the drawing before Run. Suffix is optional. Recheck the range and parameter after switching categories.

Run and audit a column
A selected column shows Comments T dash zero zero two eight in Revit Properties after the run. Audit the first and last element in the chosen range, since ordering depends on the selected visual rule and model positions. Save the model when the sequence is correct.