Hi there. I'm new to SkyDemon and am doing some trial route planning to see how I get on with it.

You will still be passing through Manchester's Class D airspace even if in the low-level route. The route just exempts you from having to gain an explicit clearance through the class D.

Skydemon does know about it, what srayne says is correct, if you plan your route through the low level route at the correct height, it will inform you when you enter by displaying 'Entered Manchester CTR- Manchester low level route' try it on the simulator

Ok, that all makes sense, thanks.

You're correct that the LLR isn't represented in the virtual radar, only on the main map. We'll see about getting it added to the virtual radar too.