The 3D scene is only half the viewer. A collapsible clash list overlays the scene so you can sort, group, filter and search the loaded clashes, and a per-clash inspector lets you review and edit each clash without leaving 3D. Together they turn the viewer into a full triage surface.
The clash list
The list shows every clash loaded in the scene, with a header count — "{n} clashes", or "{v} of {n}" when a filter is active. Each row leads with the clash number (clash #N — the permanent identity of a clash within its set), and expands to show Element A and Element B sub-rows.
Reading and controlling the list
- All / None — show or hide every clash's geometry at once.
- Sort — including Sort worst first (deepest penetration) to put the most severe clashes at the top.
- Group by — None, Priority, Status, Contact, Level, Grid, Discipline, Test/Type, Category, Group, Tags, or Changes.
- Filter facets — status and priority chips (including "None"), Discipline, Level, Grid, Group, Test, Tags, a Min penetration slider (in mm), and Explained only (clashes that already have an AI explanation). An Invert control flips the current filter.
- Search — the Filter clashes… box matches across titles, element names, matched rules, tags and recommendations.
Row interactions
- The eye button shows or hides that clash's geometry in the scene.
- The isolate button shows only that clash.
- Hovering a row makes the clash's geometry glow in the scene; clicking a row pins the inspector to that clash and frames it in view.
Isolating a clash
Isolate hides everything except one clash. While isolated, a "{i}/{n}" chip shows where you are in the loaded set, and previous/next arrows let you step through clashes one at a time — a natural way to run a review meeting.
Selecting multiple clashes and bulk editing
Shift-click or Ctrl-click rows (or geometry) to select several clashes. A bulk bar appears showing "{n} selected", with:
- Isolate — show only the selected clashes.
- Status / Priority / Contact dropdowns plus Apply — set recommended values on all selected clashes at once. This requires a Clash Matrix to be assigned to the set, because recommended values come from your matrix's priorities, statuses and contacts.
- Group ▾ — add the selection to an existing group or choose New group… to create one. A confirmation such as "Grouped {n} clashes into '{name}'." appears when it's done.
The inspector
Clicking a clash (in the list or in the scene) pins the inspector on the right. What you can edit depends on whether the clash set has a Clash Matrix assigned:
With a matrix assigned, you can:
- Apply or change the clash's matched rule.
- Set the recommended status, priority and contact.
- Add or remove tags.
- Follow "N related ›" to filter the list to clashes involving the same element.
- Use Explain this clash — an AI-written explanation of the clash. The button notes "Uses 1 AI credit · sends this clash's data + viewpoint to AI", and an explanation can be regenerated with Regenerate (uses 1 AI credit). If you run out of daily AI allowance, the viewer shows "Daily AI limit reached." with an "Upgrade for unlimited AI" option. See the Wise — Your AI Assistant help section for how AI allowances work.
Without a matrix, only tags are editable — assign a matrix to the set to unlock statuses, priorities, contacts and rules (see the Clash Matrix section).
During a live coordination session
If a coordination session is running for this clash set, the inspector gains extra controls: a reviewed toggle, a comment box, and capture & markup for saving an annotated screenshot to the session. Edits you make during a live session are recorded to the session automatically. See the Coordination Sessions section.
Asking Wise instead
The Wise panel in the viewer can do much of the above conversationally — "show only the structural clashes", "isolate #42", "what's the worst clash here?". Wise sees exactly what's on screen and applies actions to the live scene. Wise is covered in the Wise — Your AI Assistant help section.
Tips
- Group the list by Level or Grid and work through the model floor by floor.
- Use Sort worst first (deepest penetration) plus Isolate with the next/previous arrows for a fast severity-ordered review.
- The Min penetration slider is a quick way to hide touch-only clashes and focus on real interferences.
- Bulk-select a whole cluster and create a New group… — the group is saved on the set and can be synced back to Navisworks.
Troubleshooting
- Status/Priority/Contact dropdowns are missing or disabled — the set has no Clash Matrix assigned. Assign one from the clash set page (see the Clash Matrix section).
- "Daily AI limit reached." — you've used today's AI allowance; it resets daily, or you can upgrade. See the Wise — Your AI Assistant help section.
- A clash you expect isn't in the list — check the scope chip in the header; you may have opened a group or a filtered scene rather than the whole set. Also check the filter facets and the search box.
Related topics
- Introduction to the 3D Viewer
- Navigating and View Modes
- Focused Scenes and Large Sets
- Clash Matrix
- Coordination Sessions
- Wise — Your AI Assistant