Thank you for testing. It looks as that you downloaded a new OSM file.
You should have got a dialog indicating: After the download has finished, the new file should show up in the Calculate new routing graph submenue from the Routing menu.
This text is missleading. The "Calculate new routing graph" menu item is disabled as long as a graphhopper server is running. You currently need to manually stop it before the menu item shows up. I need to think about this. The easy solution is to add information for the user that a manual trigger for the stop is needed. All other ways would become very complex. The problem is that the download is performed via the external browser. I do not know when it finished, so I would need to poll for a new file, which name I also do not know.
And then I tried to manually download an area and put it in the osm folder (named under 'download osm file'), but even after restart the app it did not show up under 'show installed maps' nor was I able to click on 'calculate new routing graph'. Also there is no 'exit' entry in the menu nor the 'x' button worked for me, had to CTRL+C the 'nw .' process
The map features and the routing features are completely separated. This means that changing a region requires the user to switch the map in one step and in a second step to seperatly switch the covered routing area. The reason is that the data comes from two separated sources. I expected that people will not notice this. But I didn't expect that even you would not notice. I'm already describing it at the prominentes place I could find in the description. I have no ideas how I could improve that.
I cannot reproduce your execption. Could you please describe in detail what you did, maybe by including more log intformation from the actions before? Did you download the OSM file as *.pbf or as *.osm?
Also there is no 'exit' entry in the menu nor the 'x' button worked for me, had to CTRL+C the 'nw .' process
It looks as you are on Linux. I guess that you tried to close the application while the graph was beeing calculated. It is likely that there is some problem here, I have never tried it.
Could you please try your steps again and press F12 before to capture a log?