Point panel
In the anchor point mode of a path, with a single point selected

The Point panel with the position and type of the point selected in point mode, below the Geometry panel

When it appears

In the anchor point mode of a path, with a single point selected. It shows and sets the point.

Fields

FieldWhat it does
PositionX and Y of the point, from the page origin; when you type in one field, the point moves along that axis
Typeend (an endpoint), corner (corner point), smooth (smooth point: direction handles in line)
Radius inthe radius of the arc arriving at the point ("Fillet" if it is a rounded corner): when you type it, the arc changes with its ends fixed
Radius outthe radius of the arc leaving the point