The toolbar contains buttons to edit the selected element. To switch between buttons, use the left and right keys and to activate, press Enter. To skip to the canvas, press "Ctrl+F2".
The canvas is where your design is. To navigate into the page, press Enter. To navigate into groups or elements on the page, press Enter again. Press tab to move to the next page, group, or element. To operate the toolbar, use the "Ctrl+F1" key. If an element is selected, move it using the arrow keys; rotate using the "," key and "." key; and resize using the arrow keys with the "Ctrl" key. All of these keys can be modified with the "Shift" key to increase increment.