Most awesome ... Thank You!!

Is it possible to set dynamic bookmarks
i.e.
set bookmark 1 at line 153 text: "run-a-subroutine"
add 10 lines of code above line 153 thus the line number for the text "run-a-subroutine" is now 163

when I select bookmark 1 I go back to line 153 which is no longer where the "run-a-subroutine" is ...