How to add the entity of sub ER model file to Database model file

[frank]

Hi all,

Could anybody do me a favour? I have a blocked question to integrate the ER
model to Database Model.

I created some ER models of some sub-functions with Visio,then I created a
Database Model to integrate the ER models,

I added the sub-ER source model files to the Database model project. But I
can not find any Entities, such as table,view, in the database model
project, I only see the tables and views in each Sub-ER source model file.
'
I read the online help of Visio. It told me just click the menu item:
"Database"->"Project"->"Create". but I cannot find the menu item. Why???

How to integrate the ER Models to Database Model? Anyone can give me a hand?


Thanks very much,

Frank