All devicetree files within a build configuration are part of a larger devicetree context, which consists of a board file and a list of overlay files, as described in the section above.
You can specify the devicetree overlay file that you want to use with the board file when you set up a build configuration. If you work with more than one application or board, you have multiple sets of devicetree contexts - one for each of your build configurations.
The devicetree configuration context is detailed in the Devicetree Visual Editor's Context Overview, which can be accessed after creating an overlay file or opening a file in the devicetree context.
