Hierarchical BDDs

[jas11]

For a nested BDD hierarchy, how can I split the modelling across different BDDs? For example, for the following model:

Code: [Select]

-----------------------------------------
|                 B1 (block)            |
-----------------------------------------
       |              |            |
     ------        ------       ------
     | B2 |        | B3 |       | B4 |
     ------        ------       ------
       |
------  ------
|B2.1|  |B2.2|
------  ------

I can in EA create the project hierarchy as shown below:

Code: [Select]

System Package
   System BDD
   B1
   B2
      B2 BDD
      B2.1
      B2.2
   B3
   B4

For the System BDD, I can add just the B1, B2, B3 and B4 blocks, and not show that B2 further comprises B2.1 and B2.2 since I want to defer that level of detail to another diagram. So if I wanted to show this at the B2 BDD level, I wouldn’t be allowed to add B2 since I would be trying to add the block to its own BDD.

Is there any way around this?