What is the right way to implement a new design onto an existing Zoho application

What is the right way to implement a new design onto an existing Zoho application

I'm  new to Zoho but a long time application developer. 
I'm about to start making some modifications to an existing live Zoho Creator application. However, clearly I want to create a development version, make the changes there and then somehow update the live application once testing has been com pleted. 
My problem is that I can't find any documentation anywhere that explains the right way to safely and confidently transfer my updated design to the live database for implementation, and I don't want to start working in a way that is going to cause me difficulty in implementing my changes once testing is completed.
 
Is there a way to create a template from my updated database and use that to update/replace the design of the current application using this new template?

If Not how is it done?.
If Yes, how is this done? 

Thanks in advance.