Creo Expert Moldbase Extension > Components > About Lifters
  
About Lifters
Lifters are similar to sliders but are more flexible and can move both vertically and horizontally. Click EMX Components and then in the Components group click Lifter to define a new lifter.
Select Trim to quilt/refmodel to trim the lifter bar and remove any interference from other trim quilts.
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The trim option is only possible if a quilt surface is designated as trim surface using EMX Assembly > Preparation > Identify trim faces