An alignment setting of "Justify," set using the highlighted button in this set
(from the format bar), will produce text that lines up on both left ant right margins,
If you want to place separate text groups at each margin, with space between them, Use 'align left' (first button in the set shown), and place a Right Tab stop at the right margin,
Type the first text group, press tab, type the second tab group, for a result like this:
For full alignment of body type on the right, set the highlighted button above, but take note of Peggy's caution. Wide gaps between words make for more difficult reading of the body text.
Regards,
Barry