Can I select a single package with PortMnager

[Peter Ryan]

Hi Mike,

I see from my digging around that you
are the author of portmanager, so I hope
its ok to send questions in your direction.

I have KDE installed as a package, and
I assume that its dependency openldap also
came as part of the package.

Can I use portmanager to upgrade the 
package ?

Also, can I select just one, eg KDE.

When I did portmanager -s it ran through
all the ports (packages ?) that I 
installed.

I am new to this, and am still confused
about the difference between ports and
packages. (confused about what I can
upgrade in a package that came as a
package compared to a package that came
from a port)

Thanks
Peter