The 'Edit substring' dialog
The "Edit substring" dialog can be accessed through the "Edit substring"
buttons on the time-string tab or by using the pop-up menu of the attribute
lists. This dialog shows the current properties (name, weight and color) of the substring.

Name refers to the label of the substring that currently contains this
point. Weight assigns the given weight to all points of the selected
substring. See "Using weights" for more
information on using weights for calcualtions. Color defines the color
of this substring to be used for plots.