Variables push the automation process of Jira Issue creation with Smart Issue Templates even further.
...
By clicking on the “Add” button you will be creating variables. At first, both of the fields that a variable has will be empty.
The first field is “Name” and it is pretty much self-explanatory.
The Name must not contain spaces or a “$” symbol, i.e. (my variable - NOT allowed; myVariable - OK; $uperVariable - NOT allowed.)
The second - is the “Default value”. It is important to understand that the default value is the value that will be used when creating an issue in case the variable is not given any other value. Also, it is not necessary to fill this field right now.
...