Is there a form for proof of export for packages addressed to customers in various destinations?

Question

I read on the HMRC site that for packages to 2kg posted via Royal Mail they will accept- form C&E 132 for single or multiple packages.

If I see correctly, the form can be filled only for one addressee. Is there any other form or any other way in which I could get proof of export in the form of a single document for packages addressed to various customers in various destinations?

For the time being we are dropping the parcels ourselves at the Post Office (so we do not use collection service by Royal Mail). The apckages will be of low value- under 270 GBP, and will have a filled Cn22 delcaration.

This question is awaiting an answer
Export Action Plan