How to at once use one single symbol or one single color for all series in a chart

When creating a scatterplot with several series, Calc assigns different symbols and different colours to each series.

Is there a way to easily use one single symbol, or one single colour, for all series? I’m particularly interested in using just a single point/circle but keeping the different colours, which often makes for a cleaner, more readable plot.

Attached is an example chart. It is the default look when creating a scatter plot.customise_scatter.ods

System details:

Version: 6.4.2.2
Build ID: 1:6.4.2-0ubuntu0.18.04.3
CPU threads: 8; OS: Linux 4.15; UI render: default; VCL: gtk3;
Locale: en-AU (en_AU.UTF-8); UI-Language: en-US
Calc: threaded

In the chart’s edit mode click on a single symbol - the series is selected. Right hand click edit properties of series. You can modify colour/symbol.

@Grantler: thank you, but unfortunately, this only changes one series at a time.