Intermediate · 10 min read

Shaping a numbering route

Use start corners, run reversal, drag-reordering and the in-Revit overlay.

  1. 1

    Choose what to number

    Nexaura Precast tab → Sequencing panel → Erection Sequence. The window opens as Precast Sequencing. The mode picker asks “What do you want to number?”: Walls, Columns, Beams, HollowCore or Foundations. Your current selection pre-selects a mode; press Start →.

  2. 2

    Setup: which elements and names

    Under “Number the elements in” choose Whole model, Visible in the active view or Selected in Revit. Click Advanced Filter… to narrow by any parameter (Floor level is listed first) with Equals, Not equals, Contains or Starts with, combined with Add AND rule / Add OR rule. Each element is numbered on its own level, floor by floor from the lowest. Choose the mark parameter, Start each sequence at and Number width, then click Setup naming rules…. Pick parameters under Available Parameters and add them with →; they are combined from top to bottom under Name Parameters (In Order), and Top, Up, Down and Bottom reorder them (← removes one). Give each part its own Prefix, Suffix and Separator; they move with the part, and the last part’s separator is not used, tick Restart numbering on a part to start the count again for each of its values, and read the result in Mark Preview.

    Built-in default: Category code - Type (Restart numbering) - Number, e.g. W-PC16-001
  3. 3

    Analyze panels

    Click Analyze panels →. Nothing is written. Adjacent walls form runs (bounding boxes expanded by 50 mm, same direction and category); columns and structural foundations become stops, ordered by Follow the layout or, in Rows order, in rows within 300 mm; HollowCore slabs share a bay when spans overlap by at least two thirds.

  4. 4

    Route: start and turn

    On the Route tab choose a Start corner (Top-left, Top-right, Bottom-right, Bottom-left) and a Turn (Clockwise or Counter-clockwise). For columns and foundations, choose the order in the Route card: Follow the layout (the default for new settings) or Rows. The traversal order list and the run map update.

  5. 5

    Edit the route by hand

    Drag rows in “Traversal order” or drag on the map. Use Start here, Move to first/last, Reverse run, Reverse traversal, Remove from route, Exclude selected panels and Merge Ctrl-selected runs. Undo and Redo only affect the editor, never Revit.

    Keyboard: Ctrl+Z / Ctrl+Y, Ctrl+↑ / Ctrl+↓, R reverses the selected run, F focuses the map
  6. 6

    See it in Revit

    Click ◉ Show route in Revit for a green→bronze→red ribbon with arrows and sequence numbers drawn in your view, or ▶ Animate route to draw it one panel at a time in numbering order. Graphics only; nothing is written to the model.

  7. 7

    Review and apply

    The Review tab lists Current mark, Proposed mark, Erection and Status for each element. Resolve duplicates outside the route (Suffix all conflicts…, Show other element(s)); if there are warnings, tick “I reviewed the warnings and approve this route and numbering”. Click Apply marks: all marks are written in one transaction, and the “Marks applied” dialog sums up the result with Save report… for a CSV.

Good to know

  • On Revit 2022, picking elements in Revit does not highlight the matching run in the window, because that Revit version has no selection-changed event; every other function works the same.
  • Save as project default stores the route per mode in the model; Save setup + route… writes a file you can load later.
  • Several floors are handled automatically; add the Floor number {Level} part in Setup naming rules so marks don’t repeat between floors. To number one floor only, filter on Floor level.
  • On the Review tab, “Numbering history in this model” keeps the last 20 batches and “Check changes since numbering” finds moved, renamed or new unmarked panels.