Thanks, Jongware. They are graphic lines pasted in-line. Thank you for the insight — I'm going to take a stab at translating that into code. I'll post whatever I come up with. Many thanks for outlining the procedure!

For write on lines that don't come in the middle of sentences and span the entire line or lines that are in consistent places I am setting tabs with an underscore leader. Those are easy to find with GREP S/R b/c I can use the location markers and ~a to find them.

Best,

Jason