Little help with hat/control issue

[Jatta Raso]

F10 - mouse pointer on/off

F10 mouse on
mouse movement - moves pointer
middle mouse + mouse movement - toggle freelook
middle mouse + right mouse + mouse movement horizontal - leans to sides
middle mouse + right mouse + mouse movement vertical - zooms in/out

F10 mouse off
mouse movement - freelook
right mouse + mouse movement horizontal - leans to sides
right mouse + mouse movement vertical - zooms in/out

(hence holding middle mouse with 'pointer on' acts as an instant 'mouse pointer' toggle - very simple in practice, works with inside & outside views)

5 - center view
/ - reset views (useful to reset the center after leaning or zooming)

what is newview?