??????? ??????????? ??? ??? ?????????? ??????????? ???? ??????????? ??? ??????????? ????? ???????????! ??????? ??? ?? ???????????? ??? ?? ?????????? ??? ?????????? ??? ???????, ??? ?????????? ????????, ????????????, ??????? ??? ??? ???????? ????????.Further functions – we let end users to change cursor colour and measurement, make use of a printi