On many of our large projects we use the iTwin clash detection engine extensively. We are dealing with large multidiscipline models. After the first initial test run, results are reviewed and Rule based suppression is applied to repetitive acceptable clashes, so our reviewers can focus on real issues. After all rule based suppression is added, the next process is to review clashes individually and apply manual suppression to acceptable clashes on a case to case basis. Only after this stage, our reviewers can now raise issues and instruct the CAD guys to resolve real clashes in the 3D models.

Problem / Idea:

It’s human nature to make mistakes and a reviewer may accidentally manually supress a single or a group of clashes. When dealing with a clash test result listing 100s to sometimes 1000’s of clashes, an ‘UNDO MANUAL SUPPRESSION’ feature is very much needed. It is currently impossible to go and find the handful of clashes that was accidentally manually supressed and unsuppress them. The only way now is to unsupress all manually supressed clashes and start over, resulting in many hours of work and subsequent money lost.

May we request an ‘Manual Suppression Undo’ Feature?

Another method may be to somewhere introduce a time stamp of when a clash was supressed. This way the reviewer can filter a list of supressed clashes within a timeframe, isolate and identify them via their index number and unsupress these clashes.

May we request a time stamp of when a clash was manually supressed that could be exported to CSV or surfaced in the Design Validation results page?