Context menus are popup menu that can be accessed by tap and hold / right click with the following commands:
Editing context menu when using Tap and hold / Right click
Back: Deletes the last vertex made to a feature (Backspace)
Modify: Opens the Modify panel to modify the angle and length of the last section
New part: Adds new part(s) to the currently edited feature
•in case of area: isle, hole or new part beside the area
•in case of line: multiline
•in case of point: multipoint
The usefulness of the new part feature depends on the selected vector layer format.
Restart: Erases all vertices and editing lines (construction lines) from the map view. Cancels changes to an existing feature’s geometry or cancels capture of a new feature.
Create / Finish / Select: Creates multipoint, line/polyline or polygon/multipolygon feature from vertices. (Opens panel for the related tools) / Finishes the editing of the polyline. (Opens Geometry panel for the Measurement tools). Selects features.