Hi Callum,
Thank you for your response on my questions. #2 fixed what I was looking for as far as the crop tool. But I still can't seem to find a way to trim the canvas by transparent pixels. When I enable and disable "clip canvas" it actually expands the canvas to a larger size. When I undo, it only returns the canvas to my original working size. What I'm looking for is the feature that trims the canvas based on transparent pixels, so that the end result is a canvas size that fits the layer's actual used pixels. I hope I'm explaining this correctly. The feature in PS is called "Trim", located under Image>>Trim, and set to "Based On Transparent Pixels".
The attached images show what I'm referring too. If it's not already available in AP, it would would an extremely useful addition, along with modifier keys. :) Modifier keys for everything. :D
Thanks again for your help, and I'm really enjoying using AP so far, and can't wait to see it's capabilities truly outperform Photoshop. I'm dying to get away from Adobe products.