Your home board is the default board you'll see when you launch CoughDrop. The home board and all connected boards can be saved for offline use.
CoughDrop Home Board Video Tutorial
Set as Home Board
When you find a board you like, make sure you are not in Speak Mode and then hit the "More" button and select "Set as Home Board".
Once assigned as the home board you will see a link for this board noted on your CoughDrop dashboard page in the left hand column.
If you plan to customize the chosen board set you will probably want to make your own copy of the desired board. You can do that using the instructions in this support article.
Once you have your own copy of the publicly shared board set you can open your version of the board in speak mode to customize and adjust the options within the board.