1. Go to All Docs
Note: you can also create new Boards by changing the settings of an existing Board and hitting "Make a copy" in the bottom-right pop-up
2. Select the Doc Type(s) you wish to include in your Board
3. Use "Filter" to add filters to your Docs
Note: you can currently only filter by Properties common to ALL the Doc Types in your Board
4. Use Options to choose how to visualise your Board
This includes the properties you can see as tags, whether you view Lists or Kanbans, and which Property you group your docs by.
5. Click on "Make a copy" to save your Board!
Note: "Revert" will cancel all filters and bring you back to the original All Docs view.