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You can add/remove points to a curve when you are in the point edit mode. Right click on a control point and use the actions in the context menu:
How can I edit the text?
The text item has two modes a normal mode and an edit mode where the text can be interactively typed in or altered. In edit mode a frame is rendered around the text item to distinguish it from the normal mode.
To enter the edit mode double-click on the item. To leave the edit mode click outside the item. You can also drag an edited item by the editor frame (the item will switch automatically into normal mode). Please note that when a text item is created it automatically appears on the screen in edit mode.
How do I add an arrow?
Just add any of the line objects (including polylines) and go to the property editor to add arrow heads to either or both ends of the line.
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It is not yet available.
Is redo-undo available?
Yes there is a redo-undo functionality for all the symbol operations. You can access it via the toolbar buttons or using the Ctrl+Z (undo) Shift+Ctrl+Z (redo) shortcuts:
Please note that when performing zoom or dropping an icon into the plot the undo history is clearedIt is not yet available.
How to generate a PNG or PDF from the scene?
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