Use the direct modification handles and dimensions when you add or move custom parts. If you are unable to select custom parts in the model, ensure that the Select components selection switch is active.
Note: This method cannot be used when adding custom parts to faces that have cuts or edge chamfers. You need to hide the cutting parts and edge chamfer objects from the view before you add custom parts on cut or chamfered faces using direct modification.
We do not recommend using this method with custom parts that are parametric, and in which the input points define the dimensions of the custom part. The preview is simplified, based on the default custom part dimensions, and snapping has a different focus than usually.