Created attachment 194138 [details] sample ODS with basic bar-of-pie showing the last 3 values grouped as sub-chart The new bar-of-pie and pie-of-pie chart types groups the last three values of the data range to construct the sub-chart (see bug 50934 comment 21). Note that this also differs from MS 365's default, which groups the last two. The UI does not currently allow changing how many values are grouped, or which ones. This is confusing (the user can't easily understand the logic) and is too limiting in customisability. Version: 24.8.0.0.alpha1+ (X86_64) / LibreOffice Community Build ID: 658a212585c56540a17c41111e6829716d4ef4e3 CPU threads: 8; OS: Linux 6.5; UI render: default; VCL: gtk3 Locale: en-AU (en_AU.UTF-8); UI: en-US Calc: CL threaded Copying UX/Design team for opinion on the best UI for that.