Thanks to work done by Jiri Benc in his “ukeyboard” alternative control panel for language and regional settings I am able to present Polish layout for N810 hardware keyboard.
Polish chars are on Chr+ (where is one of “acelnosxz”).
Also few other combinations are added:
Fn+Space = | Chr+Space = Tab Chr+j = [ Chr+k = ]
Original functions of “Chr” key were dropped — there is no small on screen keyboard after single press of “Chr” and no option to enter other national chars (like “öïüõôōő” etc).