BIM coordinators, discipline leads, and documentation engineers who realign sheet sets after reviews and comments to match office standards before model exchange, print, or a large multi-user sync.

A dedicated window lists every sheet in the document: one flat list or groups by parameter, numeric prefix, the part of the number before a hyphen, plus an optional ungrouped bucket. Each group supports start value, prefix, suffix, and zero-padding; row order changes via drag-and-drop.

Before write, the add-in builds a change plan and checks for conflicts among edited sheets and against untouched sheets whose numbers could collide. One transaction writes in two stages—temporary unique numbers, then finals—so Revit is less likely to see a transient duplicate and block synchronization. A short report closes the run.

Typical after a remark round or when discipline numbering shifts—before handoff to partners or a large model sync. On risk-sensitive jobs, teams run it on a copy first; in worksharing, before everyone hits shared numbering collisions.

Manual passes on medium-sized office projects: tens to hundreds of sheets, overlapping prefixes, a second pass after an out-of-tool sheet fix, and verification of Revit undo against the planned change list. We compared the change plan to the expected number sequence before committing.

We also relied on autotests, smoke tests, and unit tests: each core service was covered so regressions in sheet grouping, change-plan generation, and numbering surfaced before release and systemic failure modes stayed rare.