Add Custom Items to a calendar

I share an exported calendar with my cleaner. This is her preferred method anyways as she cleans for 13 different owners and most of them share a google calendar with her. In the export for her calendar I have selected full booking details as well as notes in the description. However, the one bit of data it doesn't provide her is the number of guests. She needs this to know how big a crew to bring with her at turnover.

Is there a way to add this information to the exported calendar? I mean I know I can type it into the notes field but don't want to do this manually for each guest. Is there anyway to automatically add this? I tried adding {BNGUEST} to the notes field but doesn't seem to recognize the booking fields.

Thanks for any help

Are you sure you have a custom calendar export? I took a look in your account and didn't see any. If you're just exporting the default calendar, it does not contain any personal data like the guest numbers.

Pretty sure.

Guess I will open a support request so I can send you a screenshot.

Thanks Ken