Using smart objects are a common way to bundle something together while at the same time keep the integrity of the original image or text quality. 

To edit a smart object:

1. Select the layer on the layers pallet 
2. Double click on the smart object icon and it will open the smart object in a new window. 
3. Make your changes and then close the window for the smart object.  This will prompt a message asking you to save the object.  Say "yes"
4. The smart object will then update in the original template to your adjustments you made. 

For more information about smart objects :