If you want to isolate one or more selected parts in an assembly, follow these steps.
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Note
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Isolating parts with this feature is temporary; changes you make are not saved with the selected view. If you want to show an assembly with isolated parts, use the
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Snapshot 
toolbar button to save a *.png image of the assembly with the isolated parts.
In the Process Definition window under Views, select the view you want to manipulate (or create a new view).
Select the part you want to isolate in this view. (Use Ctrl+click to select multiple parts.)
The part(s) will be colored using the default selection color (in this example, the motor shaft is colored Green).
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Right-click the part, then select Isolate from the menu.
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To use the isolated part for a process step or activity, select the Snapshot toolbar button (the camera), then right-click the part and select Save Image As.
Select a location for the file, enter a name for the file, the select Save to save the isolated part as a *.png file for later use in a step or activity.
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