Batch find and replace

I have a job where the architect is using  multiple  call outs for the same material.it's all based if it's on the floor ,furniture, ceiling, counters ,walls etc.

When I create  my shop drawings I think I plan on using the architects call outs but I want to go back and find and replace the cryptic call outs with  the material  call outs  actually  call out 1 call out per material.  How can I do this in a script. Then add that script into batch mode