I agree that dragon training is painful. Especially if you already have a bunch fully trained. Fully trained dragons shouldn't even show up in the possible list of dragons available to train.

Hello,
When I first started the game it wasn't a problem to collect food and gold item by item. But as I have progressed in the game and have many islands, habitats, and food collectors, it has become a hassle to click each and every one every time I open the game.
Having a single Collect all food and and a collect all gold button would make the process of playing the game much more enjoyable.
Thank you!