Markers & Tiles?

I posed this question in another  post and was directed to Advice. But  think I  we t through everything but could  not find and answer. 

So what do they do?

OSM German?

I just noticed this in Hobbes reply to someone.  Is this a different type of map?

Garmin & Map Question

I was looking at Garmin Express to see about getting the Europe maps that I need. I thought I would delete the Mexico and other areas as a test. But Garmin servers are not allowing any activity. Now this kinda reinforced my concern about Garmin screwing up my device.

So my idea is to move the map files to a micro SD card and then obtain maps from Openfiet or BBBIKE.

My question is how do I identify the map file on my Garmin?

If you need more information let me know.

Thanks 

Garmin Explore 2?

So not a Cycle Travel question but kinda related! 

We have a Garmin Explore 2 with North America maps. We will be touring in Europe and will need Europe maps. Has anyone obtained them?

Of course we will use Cycle Travel! 

Richard, do you tour??

Richard your Cycle Travel is a fantastic tool. We are in the process of routing this year's  European tour. But wondering do you get to use Cycle Travel on a actual tour?