Group Clashes

Group Clashes

Win64, English

BIM 42
Automatically sort and group clashes.

General Usage Instructions

Open the Group Clashes window by clicking on the Group Clashes button 

  • Select a clash test. The two selections involved in the clash test are displayed below.
  • Select one or two clash rules. Since Autodesk® Navisworks® Manage does not support subgroups for clashes, the group name will include the result of the two rules.
  • Click on Group.


For a full description of each grouping rule, visit




The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin. You may need to restart the Autodesk product to activate the app/plug-in. To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10/11) and uninstall as you would any other application from your system.

Additional Information

Group Clashes is open-source. It will find the entire source code on Github, and start building your own grouping rules.

Known Issues

The Group Clashes app can have difficulties managing clash reports with more than 10000 clashes. Be smart when you set up your clash tests, and everything will be fine.


Company Name: BIM 42
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Author/Company Information

BIM 42

Support Information

Email me at with questions, feedback, or requests for enhancements.

Version History

Version Number Version Description


Update for Navisworks Manage 2024


Update for Navisworks Manage 2023


Update for Navisworks Manage 2022


Update for Navisworks Manage 2021 Add the "Model" grouping mode


Update for Navisworks Manage 2020


Update for Navisworks Manage 2019 Remove the renaming of single clash test


Create subgroups with a second rule Keep existing groups Batch process multiple clash tests


Initial release
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