PLACEHOLDER options on MarketPress Notification Email

Is there a list of PLACEHOLDERS that can be used in the Notification emails (customized under store settings)? I have all of the information I want setup as I want it, EXCEPT for being able to allow for Comments or Directions to be placed in this email. I have Special Directions checkmarked on the General Store Settings page, and I want to display that information in the email notification. I have tried the placeholder codes SPECIALDIRECTIONS, COMMENTS, INSTRUCTIONS and have searched for a list of placeholders allowed. My order form currently reads:
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A new order (ORDERID) was created in your store:

CUSTOMERNAME

ORDERINFOSKU
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because I do not want to include shipping or other information in the email to me. Just name, what they ordered, and any comments.