On the Review Stack Template page, you can see the source code of a Maestro Stack Template that is created by the Stack Builder. You can see the whole structure and the parameters, copy the code to save it externally or and modify some details, if needed.
It is strongly recommended to modify the template code only if you know precisely what you are doing. In case the code is incorrect, and violates Stack Template syntax and rules, you won't be able to proceed to the following steps.
For more details on the Stack Template structure and general rules, please see our Maestro Stacks Guide, Section "2. Maestro Stack Template Structure"