VXYModelMapper how to use in Areas Series

[gfxx]

i use with success VXYModelMapper for line and scatterer series ... but when try to use it for Area Series the result was:

Unable to assign QtCharts::DeclarativeAreaSeries to QtCharts::QXYSeries

There are some way to convert these model into one capable to generate QXYseries?

regards

[gfxx]

@gfxx sorry ... I'm novice in qml so not see Upperseriers and Lowerseries parameter ....