How to attach multiple files to a single letter for follow ups?

1. In the RPT_TRANSMIT_EMAIL_ATTACH table, insert records from backend with the same ID as in the RPT_TRANSMIT_EMAIL.ID column created for the letter.
2. Configure letter from Argus Console > Code Lists > Argus > Letter Configuration.
3. Go to Case Form > Activities > Contact Log > New Letter.
4. Select Configured Letter, and save.
5. Click Email Letter, enter the required email address in the To field, and send.