Pretty much straight forward, you can add tag filter to string, for information, filter, colaborative work etc...

1) select the string, then hit F9 (or use the context menu)
2) choose the tag with left mouse click (1 to 58 in hexadecimal)
3) if you use shift+  left mouse click, you can edit a comment.
4-5-6) edit the filter to sort only the string that match the tag you want