The current workflow for adding a new template; you add the template, you add parameter 1, you go to add parameter 2...only you can't, because adding parameter 1 jumped you to an entirely new tab that doesn't contain a mechanism for adding parameter 2.
It'd be good to have some mechanism to add additional parameters that is more intuitive - something as simple as not jumping a user to the parameter page, even. I appreciate bug 49778 partially solves for this but it's going to be a looong time before all our templates have templatedata.
Version: unspecified
Severity: enhancement
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=51774
https://bugzilla.wikimedia.org/show_bug.cgi?id=49772