2b. Design

The Design tab provides advanced customization options for your shoe last.

Control	What it does
Smooth Transition	Controls the smooth factor between the foot and the template. Factor: smoothing iterations. Radius: intersection smoothing distance. Only visible with Union Last.
Heel Lift	Adjusts model to desired heel lift height.
Toe Rise	Sets toe rise to desired height.
Smooth Last	Smooths entire model while preserving sharp edges.
Last Height	Cuts the last at specified height measured from the heel lift level.
Make Leg Round	Creates round leg shape starting from above the ankles. Only visible with Union Last.
Leg Extension	Extends the leg to a specified height and girth. Use Last Height first to make the top side planar.
Volume: Ball	Medial: widens the medial ball side. Lateral: widens the lateral ball side.

Additions

Action	What it does
Add Volume Region	Draw a point, curve, or area to add or remove volume; the software automatically closes the curve when end points are near each other. Set Height (desired height to add/remove in millimeters) and Radius (distance over which volume blends into the last). Negative values remove volume.
Pull Last to 3D Scan	Pulls the selected region toward the 3D scan for total contact areas or ankle copying.
Smooth Region	Draw a specific area for targeted smoothing.

Shoe last actions

Selecting the shoe last gives these buttons in the Action panel:

Button	What it does
Box	Opens an editable cage with size presets (Small to Extra extra large) to reshape the last.
Mirror	Mirrors the last to the other side.
Mirror contour	Mirrors the last's outline to the other side, so you can compare the toe box shapes. Also offers Mirror contour side view.
Brush smooth	Drag the brush across the surface to smooth it.
Brush pull	Drag the brush to pull (bulge) the surface.
Brush push	Drag the brush to push (indent) the surface.
Rotate	Rotate the last. Only for an imported last.

For how each action works in detail, see Tools and actions.