Replacing models in simulink

Hi, I have two models A and B. In model A, many subsystems are present and they are interconnected. In model B, only subsystems are present and they are not connected(Library). Model A is not linked to any library. Now, I want to copy the subsystems of model B and search and replace the subsystems present in model A. I am able to get the info about subsystems but I am unable to replace the blocks. replace_block is not helping much in this regard. Please help.

Thanks in anticipation Harsha

[Kaustubha Govind]

How would you determine which subsystem needs to replaced by which library block? Any distinguishing feature? Like BlockType or the name?

[Kaustubha Govind]

Also, what error do you receive with replace_block?

[Harsha]

Its solved.:) I used replace_block only and there was some link issue so it was not working.