As @hello suggests, we really need to see your macro (file and image) to be helpful.
See How to upload your macro. Instructions for uploading to an existing post are just below the main instruction.
You may also find this Macro useful: MACRO: Upload KM Macro to New or Existing Topic @KM [Pub]
You should also find this helpful:
Tip: How Do I Get The Best Answer in the Shortest Time?