Single Stat and columns name

[jeromeLB]

For a type: 'single stat', when you add columns without standard names _time and _value, the graph displays the message No latest value found.

const table = Giraffe.newTable(3)
   .addColumn('MyTimestamp', 'dateTime:RFC3339', 'time', [1589838401244, 1589838461244, 1589838521244])
   .addColumn('Myvalues', 'double', 'number', [2.58, 7.11, 4.79])

This is useful for Single stat on top of Line Layer for example to have custom legends
Is it possible to add 'x' and 'y' in layer SingleStatLayerConfig ?