WebGL builds are not supported on mobile devices.
Controls
esc escape main window focus
left mouse button
activate button; set marker on earth model; open a fragments detail window; select spheres when tool is active
right mouse button
rotate earth model; switch main fragment
w, a, s, d moving
m open/close menu
v jump back in main fragment selection history
n jump forward in main fragment selection history
1 open/close weighting triangles
2 toggle relation details
3 open/close relation filter
4 toggle multiselection