Part Modeling > Edit Features > Copy and Paste > Using Paste Special > About Dimension Dependency and Copying Sketch-Based Features
  
About Dimension Dependency and Copying Sketch-Based Features
Copied features that are dependent on the original feature may be dependent only on the dimensions or the sketch, or both, of the original feature. You can use the Partially dependent - Dimensions and AE Details only option on the Paste Special dialog box to set the dependency of the copied features on the dimensions or the sketch. Selecting Partially dependent - Dimensions and AE Details only makes copied features dependent only with respect to dimensions or the sketch, or both, or the annotation elements of the copied and the original features. All other feature attributes, elements, and parameters of the copied feature are independent. In contrast, fully-dependent copies are also dependent on other attributes and elements of the feature, such as the references, parameters, and annotations, in addition to the dimensions.
Alternatively, use Make copies dependent on dimensions of originals when Dependent copy and its options are not available for some features, such as patterns.
Dimension dependency remains regardless of whether you create fully-dependent instances of the original feature or instances that are dependent only on the dimensions or the sketch of the original feature, or whether you copy the feature in the same model or across models.
Copied features that are dimension-dependent do not have Copied as part of their corresponding labels in the Model Tree, unlike fully-dependent copied features that are identified in the Model Tree by their labels, for example, Copied Hole 2. Like independent copied features and unlike fully-dependent copied features, if you select a dimension-dependent copied feature, and right-click, Copied Feature and its options are not available because you cannot break the dimension-dependency of the copied feature.
Copying Sketched-Based Features
When copying sketched-based features, such as extrusions or revolved features, if you create a dependent copy, the copied feature preserves its association with the original sketch. Modifying the sketch dimensions of the copied features with Partially dependent - Dimensions and AE Details only selected changes the dimensions of the original feature, and vice-versa. That is, modifications made to the original or the copied feature are propagated to the copied or original feature, respectively. You can change or replace the sketches of section-based features in the source model. This change, along with the new dimensions of the replaced sketch, is associatively propagated to the dependent copied features.
 
* You can create dependent copies of features with external sketches. But you cannot vary the dependency of the dimensions of the external sketch.