Here is a list of all enums with links to the classes they belong to:

ArrowDirection : EArrow
ArrowMode : EArrow
AutoConfType : Qumbiaizer
ColorMode : EAbstractGauge
CurveStyle : QuPlotBase
DataFormat : QmlReaderBackend
DataType : QmlReaderBackend
Engines : CuEngineSwap
FillMode : ELinearGauge
FunctionType : QuPlotSettings
IndicatorType : QuLinearGaugeBase
LabelPosition : QuCircularGaugeBase, QuLinearGaugeBase
MsgType : QuLogImpl
Quads : QuCircularGaugeBase
ScaleMode : QuLinearGaugeBase, QuPlotAxesComponent
SetDataType : QuPlotSettings
State : QuPlotCurve, QuValueFilter
Type : CuControlsFactoryPool, QuAnimation, Qumbiaizer, QuXtraWidgetI
UpdateType : QuPlotSettings
WriterType : QuInputOutput