Graph: show value even if only one value exist

[Flopp]

See attached picture

Top picture: looks like there is no AVG value, but you see the AVG axis in the legend.

Bottom picture: holding mouse over the AVG value, so it exists.

Is it possible to have a DOT on the AVG value if no value exist before or after the AVG value?

I know that tomorrow it will be visible on the Top picture, but if I have values every second day I will never see the AVG value.

version 3.5273 on Linux