How to Rename a UE4 or UE5 C++ Class Used by Blueprints
Commit all existing changes so you can cleanly roll back if required Stop the editor Add something like the following to <your game folder>\Config\DefaultEngine.ini, where: <ProjectName> is the official project name UE4 uses in C++ for your project. E.g. the GT in GT_API that shows at the top of class declarations <OldClassName> is the name of the class you’re renaming from, with no A, U etc prefix. E.g. GTPlayerState instead of AGTPlayerState <NewClassName> is the name of the class you’re renaming to, again with no A, U etc prefix.
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