Most modern handheld and bluetooth scanners are able to perform a carriage return (CR) also known as line feed after successfully scanning a barcode. It means it adds a return or presses the enter key. See it in action on this youtube video here. Adding a carriage return to your bluetooth scanner is usually done by scanning a barcode that is included in the manual.
Since there are many manufactures and models we are unable to cover all of them. Below are some of the most popular ones with links to the support sites. Please note the link below are external links and if you find an issue please report it to support so we can fix
Eyoyo: https://images-na.ssl-images-amazon.com/images/I/C1O4q7X83PS.pdf
Support Site: https://www.eyoyousa.com
Zebra: https://www.zebra.com/us/en/support-downloads/knowledge-articles/evm/how-do-i-enable-a-carriage-return-line-feed-enter-key-suffix-after-every-scan-with-the-laser-scanners-when-attached-via-usb-or-keyboard-wedge.html
Support Site: https://www.zebra.com/us/en/support-downloads.html
NADAMOO: https://brokerforce.com/download/Scanners/NADAMOO2Setup.pdf
Support Site: http://www.nadamoo.cn/support/
Tera
Support Site: https://tera-digital.com/pages/instructions