You can them type the name of the target vessel (also works with stations - no need for a radar dockng
frequency at all) and
then the port number (used to start at zero, now starts at 1 I believe). Something like this:
ISS 2
Yup, you have to use the "realistic" docking port number instead of the "logical" one

BUT this is not what we are having a problem with.. The problem is how to identify/select the docking port of your
vessel with which you wish to dock. For example, you are trying to dock vespucci someplace. Now the default (or
rather hardcoded) port for docking (used by DockingMFD) is 0, or the one on the nose of the vessel. What if you
wanted to dock Vespucci using another dock (say one of the ports on the collar - okay, maybe not the best example,
Vespucci). You cannot really tell DockingMFD to use another port for the targeting display. Or can you? This is what's
been bugging us

Another example is Dorado. You can dock with the frontal port, but sometimes, you'd want to
dock it sideways to one of the many ports it has..
Of course the alternative is always to switch focus to the target vessel, and dock IT to the Vespucci. But again you
are limited to that vessel's 0 docking port.
The only addons that FULLY support default docking port switching AFAIK is the TTM24h, where you can switch
between upper, front and back docking ports, depending on mission phase. The Vescucci only support UNDOCKING of
target vessels from the Vespucci. Dorado on the other hand has no custom panel yet. Maybe the guys might develop
this function if someone asked

Cheers,