scrapbox_header_textwell.js

c = T.current;
if(c){
  s = "[*** " + c + "]"
  if(T.range.len){
    T("replaceRange", {text:s,
      replacingRange:{ loc:T.range.loc, len:c.length },
      selectingRange:{ loc:T.range.loc, len:s.length }
      } );
  }else{
    T("replaceCurrent",{text:s});
  }
}else{
  s = T.pboard;
  if(s=="undefined") s = "";
  T("insert",{text:s});
}