Our Paint will save user preference in its root directory. You can move Our Paint directory to a different location and settings will be preserved.
Click the "🞆" button on the top left corner to create a new panel, you could drag panels and edges to rearrange the layout. To dock a floating panel, click "🗖" button, move your mouse to the desired region, then click to drop the panel there. To tear off a docked panel, drag the panel title to the center of that region and drop it. Drag the bottom right corner to adjust the size of a panel. Click the "🡹" button at the bottom middle of the canvas could maximize the canvas to the entire window.
You could use "🗗" new window button to create a new window, you can then dock some more panels and put that window on like other monitors.
If you created or downloaded brush files, you can put them in the root directory of Our Paint, or in the UDFResource directory, Brushes will then be loaded automatically when the program starts. You could also read resources manually from other locations on your computer.