Is it possible to get classes from external libraries

[ThunderMusic]

Hi,
I have many libraries (third parties) I use in my app and I would like to
design my app using UML Model Diagram, but now I must create every classes
from the libraries manually instead of choosing them directly from the
Datatype combo... I use about 50-60 classes from these libraries, so it's a
assle to create each of these classes... they load the diagram for
nothing... I don't need to design them, they already are... I only need to
use them as datatypes...

Is there anything to do about this problem?

Thanks

ThunderMusic