feature: "enable/disable all" entries in legend

[heeplr]

When there are a lot of entries in the legend, it can be cumbersome to (de)select all of them.
Some way to enable/disable them all at once would save a lot of clicks.
Maybe even conditionally hide it, when there are something like <=5 entries?

[Rello]

Hi,
at the moment I am hiding all legend entries >4 during the first start.
I will look at this as part of the next releases.
the legend selection should be stored with the report as well as sort/filters/settings/translations in the table. this is currently not yet the case..