A couple of visual aides ...
To visually show you the port numbers, use this:
http://orbides.1gb.ru/orbf/dockportshow-080705.zip
(Useful for figuring out the multi-port items like OFSS-Core).
Also basic, but worth knowing ... ExtMFD is your friend. Use it to bring up an MFD that can float over your external view. (E.g. I use Docking MFD in the ExtMFD, so I can get a good panned external view in F1 mode, but still keep things aligned.) One trick with this ... when you need to interact with the main window (e.g. to set the target for docking), then make sure "Focus follows mouse" is set in Parameters on the Orbiter launch dialog. Then you set up your ExtMFD, select the menu (popping up in the main window), move the mouse into the main window WITHOUT CLICKING, then interact with the menu (e.g. arrow keys / return). Basic, I know, but without this, the Ext MFD is fairly useless!
---------- Post added at 12:53 AM ---------- Previous post was at 12:35 AM ----------
URMS ...
Brief info and tips in case you haven't "flown" this yet. You have to select it like you select a ship (e.g. F3). The arm has numerous joints that you can move manually. Highlighting closest object, and grappling closest object (or purge it to ungrapple) moves the arm automatically.
Note that the grapple is more game-mode than realistic. Meaning - you can grapple anywhere on the mesh of the object (e.g. end of a solar panel), and the arm is close to the mesh but not touching. (You need to check to see if you are grappled.)
The arm can fly through objects if you are not careful, especially when auto-grabbing or auto-stowing. No harm to the game, but irritating if you are a perfectionist
.
On Flight #2 ... note that the Cupola is the dome shape (i.e. it's a viewing room), and the OFSS-Dock1 is the dock mating adapter (a slanting tube like a tumble dryer exhaust tube!).
An example use of the URMS ... Flight #4 step 3, undocking and grappling Soyuz. Swing your arm round to get really close to the Soyuz. Switch on target mode to make sure you are targeting the Soyuz. It'll be red, because you can't grapple it whilst it's still docked to the OFSS Core. F3/switch to Soyuz, then Ctrl-D to undock. Switch back to the URMS, and the Soyuz will now be green and moving back from the OFSS-Core. Quickly grapple it and you are good to go.
(Optionally, you can null out the undock motion first (fwd thrust on Soyuz), but I figure that you have pushed off from the OFSS, so grabbing it in motion should end up with a zero net momentum, versus nulling and then grabbing!).