Row Identifiers

Available schemes

Traditional Letters

Rows are identified beginning with A and continuing through Z, skipping any excluded letters. After Z, rows continue as AA, BB, CC — doubling the next sequential letter. Identifiers that would contain an excluded letter are skipped (for example, II is skipped when I is excluded). Following ZZ, rows continue as AAA, BBB, and so on.

Sequential Letters

Rows begin with A and continue through Z, skipping excluded letters. After Z, rows continue as AA, AB, AC, and so on — incrementing sequentially. Following AZ, rows continue at BA, BB, BC, etc. Identifiers containing excluded letters are skipped.

Numbers

Rows are identified with numbers beginning at 1 and continuing sequentially. Excluded values are not supported for numeric identifiers. Row numbers may be skipped manually during placement by selecting a different starting row designation.

Using row identifiers in Revit

Row identifiers are stored in the shared parameter PB_Row_Identifier on each seat family instance. These can be used in:

• Furniture or Multi-Category schedules
• Row tags in plan and section views

Editing a row identifier

Row identifiers can be changed directly by editing the PB_Row_Identifier parameter in the Revit Properties panel on any seat in the row.

If Auto Update Location is enabled in User Defaults, changing the identifier on one seat automatically propagates the new value to every other seat in the same row and updates the row's internal data. There is no need to edit each seat individually — the entire row stays in sync.

If Auto Update Location is disabled, the edit applies only to the individual seat you changed. The rest of the row retains its original identifier and the row's internal data is not updated, which may cause inconsistencies.

Tip

Auto Update Location also works when editing the Venue or Section parameters on a seat — any of the three location parameters can be corrected on a single seat and the change will ripple across the whole row.