When an IGES file is dragged into a Solid Edge assembly from Windows Explorer nothing happens.
Solution
You can drag Solid Edge file types into an assembly from Windows Explorer but not IGES, X_T, or any other foreign file type. The IGES will have to be translated into a Solid Edge file type by opening it explicitly.
Notes and References
Hardware/Software Configuration
Platform: INTL64
OS: window
OS Version: 1064
Product: SOLID_EDGE
Application: DOC_MANAGEMENT
Version: V219.0
Function: DOC_MANAGEMENT
Ref: 001-8833659