How would I back up all sms and only restore certain threads?

[Deleted User]

Good evening/afternoon

as the title says really...want to back up all (which i can already do) but want to only restore some of the threads back. messaging app drags somewhat nowadays with lots of convo threads!

 

[kadimi]

Have you tried SMS Backup +:

If you’ve got important text messages and you don’t want to waste precious time writing them down, there’s SMS Backup +. This free app automatically sends your SMS threads to Gmail and stores them under the label “SMS.” Not only that, SMS Backup + also backs up MMS and call log entries. SMS Backup + also allows you to restore SMS and call log entries back to your phone, but unfortunately restoring MMS back to your phone is not yet possible at this time. Future updates may resolve this issue.

Source: How to backup your Android phone to the cloud

MightyText is another good app, not exactly what you may need but you can adapt it to your needs: http://www.androidauthority.com/mightytext-messaging-app-android-imessage-96252/