I went through the same thing here when I first started a month ago. People are more than willing to bend over backwards to help you out. I found that at first I did not have an INI file so I had to make one. Take one of you toons and type
/mac kissassist the first time and it will create the ini file for you and you will see it in you Macros folder with your char name attached to it. You will have to do this with each of your alts yea It is time consumeing but worth it in the end. After you have all of them done then go to your Macro folder and now you can edit your INI file via notepad. Just make sure you save it. Then when you play target your main tank type
/mac kissassist and you will see it going throug the list. You may have to tweek the INI file a bit to get it to work for you. Also remember when you are done type /end that stops the macro from running