btw: is there kind of a rule of thumb to "understand" the selectors wiring without losing days to test any possible connection with a tester?
VLX (or similar "super" switches) often are a lot easier to understand than standard 5-ways.
First, you got 4 rows of contacts, 2 on each side, each having contacts 1-5 and 0. The "0"-Contact is the "common-c" contact in devo's post. With all wiring removed, there are no internal connections between those rows, all rows work independent of each other.
Now, if you look at this diagram, and put the switch into the "1" position (that is, all the way to the right on the left pic and all the way to the left on the right pic), each "1"-contact will be connected internally to the "0"-contact on the same row. In that position, there are no other internal connections, so, no 2-0, 3-0, 4-0 or 5-0- connection, just the 1-0.
Now, if you move the switch into the "2"-position, each "2"-pole gets connected to the corresponding "0". 1-0, 3-0, 4-0 and 5-0 are disabled. And so on.
Now, while keeping that in mind, download a jem diagram (they have a vlx switch + standard wiring, so they are pretty simple to follow), simulate each switch position in your head and be enlightened