What are the tools on the sidebar?
The save icon is located on the bottom bar. By default this will save the current board into the Flockmod gallery. If you don’t want to save to the online gallery, you can uncheck the option in the configuration panel, and any saves will be saved on your computer instead.
This brush will load a selected custom brush for you to use on the board. Use the custom load to select the brush.
Are there any hotkeys for these tools?
Yes, the default ones are listed below. However you may change them to your liking in the shortcuts manager.