@:impl@:enuminlineread onlyBOX_SELECTION:CharterGridActionType = 1
@:impl@:enuminlineread onlyDELETE_SELECTION:CharterGridActionType = 5
@:impl@:enuminlineread onlyINVALID_DRAG:CharterGridActionType = 3
@:impl@:enuminlineread onlyNONE:CharterGridActionType = 0
@:impl@:enuminlineread onlyNOTE_DRAG:CharterGridActionType = 2
@:impl@:enuminlineread onlySUSTAIN_DRAG:CharterGridActionType = 4