If you want to select text and copy it to the clipboard using only the keyboard, you will need to show the caret. Then you can use the arrow keys to move the caret, hold Shift to select text, and press Ctrl+C to copy the selection to the clipboard. To switch between the left and right file views, use the Tab key.
| File Comparator menu: | View/Show Caret |
| File Comparator shortcut key: | F2 |