Canvas Sizing

Hello! I hope I am in the right place. I found the answer to my question about the error message I got when I attempted to load my file. I understand that I must use File>Import. Now I just have the image not fitting the canvas. It cuts off the top and bottom. How can I get the canvass to take my whole image? :smiley:

Toolbox > Settings > Misc. tab > Scale New Imported Images to Fit Canvas

Thank you!!