The keyboard focus is indicated by making the toolbar or line on top of a pane slightly darker. E.g. to replay the game using the arrow keys, you want the board to have the focus. You can change the keyboard focus by clicking in an area of the screen or by choosing View > Focus.
We encourage you to explore the Tools > Options dialog. Did you know you can switch the board to the left? Choose between showing the start or end of a game when opening a game? Change the time for tactical analysis? Use the Go Text Protocol to connect to GNU Go? Easily associate SGF files with SmartGo? All these settings and many more are available in the Options dialog.
Right-click on a tab and choose Tab Settings to change how duplicate games are handled in that tab. If you choose to mark duplicate games, you can show those duplicates by right-clicking on the header of the games list, choosing Add Column, and selecting the 'Dup' tag.
You can add additional columns in both game and player lists; just right-click on the list header. For example, you might want to list handicap or komi, or track the percentage of games a player wins by resignation.