It would be useful if Mstn's Cell Library would also be able to attach iTwins.

The Cell Library's attach iTwin tool would drill down into the imodel and list the Cells in that model. The Attach iTwins tool does not do this, so no duplication.

Since this is all being handled by iTwins. Any changes to the components would be tracked. This would the user to Synch from the iTwin to the Cell lib. And from there the Auto Upate Parametric Cell tool would do its thing.

See previous discussion