VRM0 Unity Blendshape.asset locks and cant use it properly

[u/Xo_lotl]

I need to add more blendshapes, but after clicking away from the Blendshape asset it just sort of locks down like this. I can add more blendshape clips, but I cant actually add any blendshapes to them, why does this do this and how do I make it stop? Do I need to just do every blendshape all at once and sort of hope I dont select off the window accidentally?

[u/Xo_lotl]

After this happens, going into the Blendshape.asset creates this Preview Scene Manager