I would like to be able to directly shift from flight form while flying. I often like to drop out of the air in cat form and immediately prowl. Using the following

#showtooltip
/dmh start
/cast !Cat Form
/dmh end

Won't allow me to shift if i'm flying. I get "You are in shapeshift form" error. Note I can shift from flight form to cat using the macro if i'm on the ground. I have also tried using /click dmhStart and /click dmhEnd but I get the same result.

Thanks!

Edit: I took a look through your code to see if I noticed anything obvious that is preventing it and I don't see anything. I did find a work around if I put a /cancelform [noform: 3] or [noform:1] before the /click dmhStart it performs as desired. It still doesn't explain why flight form works while on the ground and not in the air, but it's something.

If you enable the "Auto Dismount in Flight" Option under "Interface > Game > Controls" it should work.