MEP Connectors are a very important aspect to the effective usage of Autodesk Revit MEP software. The MEP Connectors, which are attached to Revit families, contain important information that is utilized for design and connectivity features of Revit MEP. They are utilized to connect ductwork, piping, electrical, etc to a family and have many connector-type specific settings and characteristics. This article addresses many miscellaneous aspects of MEP Connectors which are helpful to be aware of.
Whether linking files in Autodesk Revit or xreferencing files in AutoCAD, choosing to Attach or Overlay is an important decision. As I perform software training at companies, I routinely encounter many users who do not understand the difference between using the Attachment or the Overlay options. There is not a global right or wrong answer to this decision, but understanding the difference helps you to determine which option to use to achieve the results that you require. When you link or xref a file into your current file, you are doing that to see information that is in another file. The Attachment/Overlay option determines how that file will be seen downstream in other files.