Use this package to justify content of a column/block.
First you need a selection.
aaaa1 bbb
aaaa bbb
2aa bbb
Place two cursors at the outer bounds of your block (in the example above after the '1' and in front of the '2'). Then call createSelection from the menu atom-justify. This will select the first block.
Now you can use 3 commands to justify the block -> JustifyLeft, JustifyRight and Justify. The last mentioned command will just switch between left and right.
MIT © Andre Lerche