# 3.7.Known Issue / FAQ

### Issue

* Grouping Parameter in Data Table and renew parameter may case grouping still on top, but grouping row is already reset. Please clear the grouping column before other operations.

### FAQ

1. Why can't edit the Revit Link Elements Data?

> Because linked documents are not modifiable, please unload and open the document as a separate main document, make the changes there, save it, and link it back again to the original host.