Thank you!

Sure, import of the maps can be improved. As you could see from yesterday's post by @karry, he is working on it . See also earlier discussion between @karry and @MartinK on the subject. We could expect that the devices would be able to download maps directly from some server, but there maybe some time before it will be up and running.

So, at present, an ordinary user would have to download maps to PC, drag-and-drop them on importer tool, and transfer imported folders to device. I think its reasonably simple and, taking into account that @karry's work, there is no point in making fancy GUI on PC side of things.

Re Ural and Volga: I tried to import Volga district and it leads to 328MB folder. When moved to device, all worked fine. So, I think something went wrong during import or while you copied to the device. Note that you should have got all the files that you have for Ural, maybe something is missing. If the importer finishes with such small import, please tell me what OS do you use, importer version, and maybe you could also provide Importer output? Otherwise its hard to debug the issue.

Routing between 2 maps is not possible (yet). What you can do is to join the regions that you are interested in. Use OSM-provided tools for that, as explained at https://github.com/rinigus/osmscout-server#maps . In particular, look at https://wiki.openstreetmap.org/wiki/...lel_Processing

You may consider to reduce the maps to the part that you actually use using osmconvert.