Currently it appears users have to put together goal tracking JS themselves, choosing the correct goal ID etc. and wrapping the code in JS tags. Please auto generate this code to reduce the likelihood of user error when creating tracking goal code. Non-technical users don't want to handling JS syntax -- copy and paste is better.
If there was such an option I kind of doubt though that people would find it when they have no clue about JS and how Piwik works etc. That's why I'm showing the tracking code eg for Custom Dimensions when editing a dimension:
We could show similar info box when editing a goal.