Of course! You can set your target through your Piggy's settings, whether or not it already has savings.
Follow these steps:
1. In the Piggys section, select the Piggy you want to set a goal for.
2. Select the gear symbol in the top right of the screen to go to Settings.
3. Set the ‘Target’ and its ‘Deadline’ by selecting the pencil symbol and the click ‘Save’ when you have defined it.