I'm testing the turn animations and noticed that I can't mirror existing animations like with the walking or standing animations.
At least I can't select any animation I wish to mirror...
Is this a bug or am I overlooking something?
Probably because it's somewhat more complicated animation? I highly recommend against using mirrored animations anyway. You can't add custom scripts / actions / sounds into the animation frames for one & it does mirror the animation, which doesn't always look that nice to begin with - mostly if your characters have distinguishing features on either side of them, like hair parted to one side or a scar or some kind of unique item on their clothes like a badge, pocket, buttons, etc.
Right, back on topic...
I think the general idea behind the new turn animation system is that you create an animation for each direction; from x to y for every single direction on the compass. So you would for example from lets say east (0º) create a rotation anti-clockwise for:
- east > north east
- east > north
- east > north west
- east > west
& then for clockwise...
- east > south east
- east > south
- east > south west
Rinse & repeat for every other point on the compass. It's a lot of work, but if you want lovely / realistic turn animations which include a start turn, turn & end turn, then it is the best way to go about it. You could actually show the body turning into the rotation unlike the the basic/cheaper looking method of just rotating with the idle character animation.