FreeOffice: You cannot create charts in SoftMaker FreeOffice.
There are two ways to insert a chart into the current slide:
▪Inserting charts via PlanMaker
| The most convenient way: Create or open a chart in the spreadsheet application PlanMaker and copy it to the clipboard. Then switch to Presentations and paste it there. |
Alternatively, you can simply create a new empty chart using the ribbon command Insert | Chart frame  in Presentations. You then enter the numeric values to be displayed in a dialog box, which you can open with the Edit data button. |
More information can be found on the following pages.