Using the Toolbar
The toolbar is displayed above the canvas and contains several tools:
1 — The Documents button on the left closes the current graph and enter the Document Chooser so you can switch, share, or otherwise manage your documents.
2 — The Undo button undoes the last change . (Everybody makes mistakes!) You can undo all the way back to when you opened the graph, however, there is no redo and if you close the document (by hitting the Documents button or quitting OmniGraphSketcher), your undo history goes away.
3 — Tap the graph name in the center to change the name of your graph.
4 — To add some pizzazz or make adjustments to your graph, tap the Info button. Tapping the Info button shows the Info popover for the selected object where you can make style and property adjustments. If nothing is selected, tapping it shows the Canvas Info.
5 — Tap the Draw Tool to enter Draw mode and add data to your graph.
6 — Tap the Fill Tool to enter Fill mode and draw some fills.