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1. Select the Trace tool in the 2D toolbar. 
    
2. Select the Baselines, Internal Lines, or Outlines to be traced.
    
3. Select the lines on both sides of a half-symmetry pattern to create a traced pattern that preserves the half-symmetry relationship and includes any Baselines and Internal Lines within the selected area.
    

4. Right-click on the selected Baselines, Internal Lines, or Outlines to access the pop-up menu.
    

5. Select Trace as a Pattern.
   →The selected Baselines, Internal Lines, or Outlines are traced as a Pattern.

Trace as Internal Shape

Trace (Shape Mode)

Use Shape Tracing to combine, cut, or split overlapping Patterns directly in the 2D Pattern Window.

1. Select the Trace tool in the 2D toolbar.
    
2. In the Trace dialog, click Shape to switch to Shape mode.

Trace

Use Trace to merge two or more overlapping Patterns into one new Pattern that follows the combined outline of all selected pieces.

1. Select two or more overlapping Patterns. 
    
2. Click the Trace buttonin the Trace dialog. 
   → A preview of the merged Pattern outline follows the cursor.
    
3. Click to place the resulting Pattern in the 2D Pattern Window.
   → A new Pattern is created that covers the full area of all selected Patterns combined. 
   → Any internal lines or shapes — such as holes, notches, or internal markings — that exist within the selected Patterns are carried over into the new Pattern.

Fill & Trace

Use Fill & Trace to merge overlapping Patterns into one new solid Pattern. Any gaps or openings between the selected Patterns are automatically closed. 
Unlike Trace, internal lines or shapes within the original Patterns are not carried over to the result.

1. Select two or more overlapping Patterns. 
    
2. Click the Fill & Trace button in the Trace dialog.
   → A preview of the filled, merged Pattern follows the cursor.
    
3. Click to place the resulting Pattern in the 2D Pattern Window.
   → A new solid Pattern is created from the combined area of all selected Patterns. 
   → Gaps and openings between the selected pieces are closed. 
   → Internal lines or shapes from the original Patterns are not included in the result.

Trim

Use Trim to cut the shape of one Pattern out of another. The last Pattern you select acts as the cutting shape, and the result keeps only the parts of the other Patterns that were not covered by it.

1. Select two or more overlapping Patterns. Select the Pattern you want to use as the cutting shape last. 
   → When you hover over the Trim icon, the cutting Pattern turns red so you can confirm the right one before clicking.
    
2. Click the Trim button in the Trace dialog.
   → A preview of the trimmed Pattern(s) follows the cursor.
    
3. Click to place the resulting Patterns in the 2D Pattern Window. 
   → The area covered by the cutting Pattern is removed from the other Patterns. 
   → The remaining pieces are placed as a new Pattern.

📝 Note: If the cutting Pattern sits entirely within another Pattern, a hole in the shape of the cutting Pattern is punched into the result instead.

Slice

Use Slice to cut all selected Patterns apart wherever they overlap, turning each region into a separate piece. This is useful when you need each overlapping area as its own independent Pattern.

1. Select two or more overlapping Patterns.
    
2. Click the Slice button in the Trace dialog.
   → A preview of the separated pieces follows the cursor.
     
3. Click to place the resulting Patterns in the 2D Pattern Window. 
   →  Every overlapping region is separated into its own individual Pattern piece.