====== 止口 tool-seam_allowance ======

  - 選擇要加止口的線段
  - 點選 {{tc:resources:pattern_tools_reference:tool-seam_allowance.png|tool-seam_allowance}}
  - 再點一次選取的線段，輸入數值後完成 {{tc:resources:pattern_tools_reference:tool-087.jpg|image}} 
  - 剩下的線段若要加相同的止口，可全選樣片再加止口，這不影響前面已加止口線段的止口數值 {{tc:resources:pattern_tools_reference:tool-088.jpg|image}}