LibreOfficeDev 25.2 Help
EUSW6‖To edit a chart legend:
gj2Tr‖Double-click on the chart.
fAvFC‖A gray border appears around the chart and the menu bar now contains commands for editing the objects in the chart.
4CEUb‖Choose Format - Legend or double-click on the legend. This opens the Legend dialog.
5EPYG‖Choose from the available tabs to make modifications, then click OK.
n5CMR‖To select the legend, first double-click on the chart (see step 1), then click on the legend. You can now move the legend within the chart using the mouse.