I always add an empty line between each section in the fsx.CFG and Prepar3D.cfg so that their contents can be easily read. It is in particular helpful when doing a search. Here’s the CFG_Spacer utility that I recently wrote to speed up the task.
The utility is good for FSX, FSX-SE and Prepar3D, and can be downloaded from the Freeware section in my FIP Gauge Store here.
No installation is required. Just unzip and put a copy of the utility in the fsx.CFG or Prepar3D.cfg folder and run it when needed. Up to 5 backups of the original (last used) cfg file will be created under the same folder for safety sake.