Change Author on Edit lets you add to certain usergroups the ability to change the author of a thread upon editing of the first post. It's as simple as it sounds. The plugin adds 1 setting to each usergroup's permissions page.

Minimum requirements
PHP 5.4
MyBB 1.6.0

https://www.mybboost.com/thread-farewell-mybb

Credits to Shade at MyBB Boost - https://www.mybboost.com/thread-release-...n-edit-1-1