Rewriting my app - while using the old one

[jeffs88keys]

So,  I've come up with a wish list for my existing app.  Unfortunately, it will require a basic re-write of about 1/2 the datasheets.

I'm wondering what would be the best way to do this, while still allowing my existing apps to continue working.  

What I don't want to do is create new datasheets for testing purposes, and then come back to the original ones and modify them.  I'd rather create new ones and then replace the old with the new.  But I need to make sure the data is in place.

Just looking for any thoughts from someone who has done this before.

[rgiljohann]

I have done this in the past by duplicating my app. I then make the changes in the duplicated app for testing purposes. After everything is done, what you could do is export the new app as Caspio XML format, and then import and replace it to your existing app provided all of the naming conventions are the same. The alternative to importing would be to change your datapages to the new ones.