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Before you can sync current view you need to :
Set Revit Attribute Configurations (AC)
Link and Synchronize dRofus Items and Revit Family Families types with Items in dRofus.
Sync instance in current view
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b) “Sync current view” to see the synchronization options before starting to synchronize:
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Select “Move Occurrences to this model” if you would like to update the model name. Read more Split model and Update Model Name on Occurrences
Select “Use system types” if you would like to sync your system on System Type level and not “System Name”
Verify that the right configuration are in use
Select “Categories” of Family Types that should be included in the sync.
Select “Ok”
Prior to the completion of the synchronization process, a preview of the occurrences that will be created and updated (refer below) will be provided to you. This preview will enable you to assess the extent of the operation before finalizing it.
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6. Select “Continue”
The Occurrence of the selected family categories is now synchronized