i take it you're using 2003 or earlier. i create my notes as a single entity (1 thu N as a single note). i then create the triangle(s) and alt+drag over the note number which needs to be flagged. there's an align toolbar that can be useful if you have separate notes. i sure miss justification points/anchors and precision snapping from that other software i used to use.
2004 makes this a little easier as you can insert flagged numbers into your note (annotation). i wish 2004 wasn't such dog, pig or whatever someone wishes to call it, so i could take advantage of the drawing enhancements. drawing enhancements are my primary interest next to sheetmetal.