AnimBlueprint BoneName via Variable


iam using an AnimBlueprint mixed with C+±Variables to control Bone-Transformation from this tutorial:

My AnimBlueprint looks like this:

BonePos and BoneRot are two Variables set by a custom C+±Class.
This works great, thanks to Rama for his tutorial.
But I cant set the String “Bone to Modify” via an Input-Pin to link it to a Variable.
I want to set the Name of the “Bone to Modify” to dynamic move one different specific Bone at a time.

I need something like this:

Does anyone have an idea how to do this?

I second this, it would be very useful to be able to set the bone-name via a name variable.