You might want to use one of your current showcases as a template for others. No fear, you don't need to start all over again - you can use the "Copy" function and save yourself some time!
In the Home tab, click ‘More’ under the showcase you wish to copy.
Select ‘Copy’ from the drop down menu & confirm.
This will duplicate the showcase and after loading, it will be visible at the bottom of the showcase list.
Copied showcases are unpublished by default, and the rules in manage access are not copied. You can create as many copies as you want!
*Important to note: changes you make in the original showcase will not appear in the copy.