Edit nodes with control

Select a vector path and press A. Drag a point or handle to adjust its geometry. Shift+click combines points; dragging a selection area selects several. Ctrl+A selects all path nodes.

Double click a path to add a point. Delete removes selected points. Hold Alt while dragging a handle to separate its tangent.

The tool strip offers Smooth node and Corner node. Modify → Paths includes simplify, close, reverse and separate. Dense path markers may be limited on screen without removing geometry. Raster painting has no vector nodes.