I don't know of a workaround for this. It should be a fairly easy fix to make it so a comment is added to multiple emails. Alas, it can't be done currently.
1) Open the Customers List
2) Highlight the customer you are interested in for a statement
3) Click on "Customer" in the menu tab at the top of the screen
4) Select "Statement" and you will have a bunch of options (print, email, view, etc)
1) Open the invoice list
2) Highlight the invoice(s) you want to print
3) Click on the "packing slip" menu option
4) Select "Print packing slip" or "Email packing slip"
1) Open the invoice list
2) Highlight the invoice(s) you want to print
3) Click on the "packing slip" menu option
4) Select "Print packing slip" or "Email packing slip"
Version 3.36 prints my invoices on single pages but 3.36 still prints my packing slips on multiple pages. Still not going to work for me so back to 3.28 I go once again.
The latest 3.35 version supposedly fixed this problem but it didn't fix it for me. My invoices are still printing on 2 pages and now my packing slips are printing on 3 pages. Good grief! Back to 3.28 once again. This is getting really annoying.