The amber boxes are required fields and ---- are optional. The bottom line is a scratch pad. You first punch in the data there and push one of the index switches on the side to insert it in place.
Yea its not beautiful to most people (I disagree) but it is very clear in the way it works.
Here is the new one: https://www.aviationpros.com/tools-equipment/maintenance-it/...
> its not beautiful to most people
I think the same could be said about audio mixing boards, for example. I've found that interfaces for professionals often look ugly to the uninitiated.
I've said many times that you should give an interface two weeks, not two seconds. Interfaces that you love after two seconds, you may come to hate after using it every day. Interfaces that are intimidating on the first day, you may come to love after a few weeks, and even more and more through the years. For me, a great example is vi.
I wish more people knew this tradeoff.