Process Instance Name
The Process Instance Name attribute allows you to set a logic, a way to determine what is your process name when it is running. It will help you to recognize them when you have multiple instance of the same process running at the same time.
In order to set the "Process Instance Name" attribute, navigate and right click on your process.
The following context menu will appear and select this option under the "Attributes" sub-menu.
A modal will pop-up (see the picture below) allowing you to select the logic you wanna use to determine your "Process Instance Name".
In those logic you will be able to reuse your Inputs, Outputs, Data Object and Data Store present in your process.