Yes, you can go in and name your presets and when you choose one in the MIDI Track Inspector it will show the name there. The MIDI Device editor is a bit quirky at times.
About the # alignment, this is common on various devices. Some start at 0 (which is very “MIDI”) but others start at 1 (which is more human) and throws things off.
You can also just use “Define New…” when clicking Install device, this is “from scratch”.
I haven’t created devices in a long time, since I haven’t bought any equipment that I need to change programs for. I have used a Roland V-Synth for a few of years, that is brilliant for manipulating samples. But I don’t really use the Programs on it other than recording and saving them on flash memory (in case I need to do it over).
In contrast, I have a KORG Z1 that I have used for many years and there are some sounds on it that I use when composing and so it’s very convenient to select a sound (by name) from a list instead of trying to remember the number, even though by now I do know the numbers. 
I only use these sounds until I have a basic song arrangement and I then create actual sounds on whatever engine that match what I really was aiming for.
The reason I do this is because some sounds seem to make it easier (for me) to build the song structure, without being sound biased. I mean I love cool sounds but they tend to distract from the task at hand. 
So when I have the basic schematic for the song, THEN I can have fun with whatever sounds I think will work.