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Revision clouds are visible only on the view they are placed
Revision clouds can be placed in 3D views
Revision clouds can be tagged
Revision clouds are annotations
Shared parameters are assigned a unique GWID number
Shared parameters have a visibility setting
Shared parameters can be renamed
Shared parameters cannot be used in tags
Both can be named
Both extend infinitely
Both are used as a constraint host in a family
Both should be used to control rotational geometry
They remain
They are deleted
You cannot convert existing walls to curtain walls
They are converted to curtain wall entities
Pick walls
Slope arrow
Center ends arc
Pick lines
Construction line