Adding artificial diffusion/stabilization to PDE

Hi folks,

can anyone point me to an example or model in the library where stabilization is added to a PDE.

I've seen in the forum someone saying "transport problem" example, but it was in V3.5a, and I am using 4.3
and no access to 3.5a.

Any thoughts?

Thanks in advance.

Cheers.

Rui