Solid Edge Why "Save As" is not displayed when parts in assembly are opened by Open command?

When assembly is opened & Parts are opened by "Open". 
Only "Save Copy As" options is displayed where as "Save As" is not displayed.

Solution

If we open the part/ sub-Assembly in edit mode then the part/ Sub Assembly document opened in the same container so we allow both option Save Copy As and Save As. 
And if we opened the same by "Open" then part/ Sub-Assembly document is in another window and container is in another so we allow only Save Copy As.

Notes and References

9172359

Hardware/Software Configuration

Platform: INTEL
OS: window
OS Version: 764
Product: SOLID_EDGE
Application: ASSEMBLY
Version: V109MP14
Function: FILE

Ref: 002-8002172