To open the Scale tool, double-click on "Scale" in the Toolbox.
To interactively scaledefinition_translate@definitions.hlp selected points, LMB Drag in any Camera View while Scale is the Current Tool. As you drag the mouse, any selected points will be scaleddefinition_translate@definitions.hlp along the two axes that arent Active. To scaledefinition_translate@definitions.hlp selected points along the Active Axis, hold down either control-key while you LMB Drag.
Alternatively, you can scaledefinition_translate@definitions.hlp points using specific percentages by entering values in the Scale Factor X, Y, Z controls.