Concerning point 5 - Nevada also uses them.

I understand the process, but not the how to. And believe me I am interested in the how to.

And can I take it that when you say Frankensteining, the process is not easy and may lead to...undesirable results?

That's what I thought but I was hoping for a different answer. Would be handy if there was a 'layer' feature in editor.

Yeah that's what I assumed. But is there any way to copy what I've done on the edited map and apply that to the updated map?

I've done a few searches for this but can't find an answer, so I figured this is the best bet for an answer...

If I edit a map (in this case changing/adding roadsigns across the USA map) and SCS later updates the base map, can I apply my editing to the updated map without starting from scratch?

(sec-0004-0001);-15499.7;70.4397;-1726.09 The rest area on E40 at the Belgium/Germany border has very tight curves at the entrance and exit to the truck parking area - too tight for many trucks to take without driving off the road and far from realistic. Given the size of the real one, can I suggest...

Read my post again

There be your parking icon.

17701.3;43.9527;-17844.4

Invisible wall in rest area at Dziwnoek (PL)