Redmine

The right click context menu is great on the Issues tab, but one functionality I wish it had was the ability to right click and select "Add Child Issue".

Basically from the issues list you would right click an issue to bring up the context menu. Then right before the "copy" option would be "Add Child Issue". When you select it, it would bring you to the New Issue form with the Parent Number already populated for you.

As and expansion of this functionality the "Add Child Issue" could have a fly out menu like "% Done" and "Priority" where you could also choose the tracker type for the new child issue. And when you go to the New Issue form the tracker type and parent number are both populated for you.