When creating a new feather, I would like to have the option to auto-create it's corresponding mate. It could go something like this:
1) Create a new "Audio To" feather, entering the Feather ID and Label in the attributes.
2) Have a button at the top of the Properties window to auto-generate it's corresponding mate. In this case, an "Audio From" feather.
3) The new "Audio From" feather would appear/dovetail right next to the original, having the same Feather ID and Label attributes.
4) The user would then drag it to the appropriate location/sheet, and edit the Label as necessary.
An alternative to the new feather auto-appearing on the drawing is for it to go into a queue, similar to the Available Symbols list. You would then drag it onto the sheet when/where it is needed. This could also serve as a verification that both "ends" of the feather have been connected.

- Cory