Solidworks-premium-2020 【ORIGINAL - TUTORIAL】

: Automatically flattens complex, non-developable surfaces (like leather or cloth) into flat patterns for manufacturing.

: Use the Move Face command (Direct Editing tab) to offset a face, effectively lengthening a solid body without editing the original sketch. Advanced "Premium-Only" Features solidworks-premium-2020

: Double-click the feature in the FeatureManager Design Tree (e.g., an Extrude) and change the numerical value of its length. : Automatically flattens complex

In , there is no single "long feature." Based on your query, you are likely looking for how to make a part longer or seeking a list of advanced features included in the Premium version. How to Make a Part Longer solidworks-premium-2020