not sure why but i only get a bullet on the first line, (i am not creating it from scratch, i am editing a document) so i highlight the 5 lines then select Bullet, but only 1st line gets the bullet.... why?

i thought it had a simple requirement that each bullet had to be on seperate line (i see the newline or return character at each line) but apparently there is more to it....

can anyone explain ? what do i need to do to get each line as a bullet (without retyping each line or move to previous line and pressing enter)