The process for creating your own configuration template is:
- On a test device configure the parameters you are interested in setting with values that will be easy to search for. This can be done directly on the device web UI.
- Export the device configuration. Via cnMaestro this is done by navigating to Configure -> Devices, selecting the device in the left-hand tree and then clicking the View Device Configuration link. This can also be done via the device web GUI, typically in the Administration or Operations section where there will be an Export button for configuration.
- View the configuration file in a text editor like Notepad++ and search for the values you entered in step 1. You can also search for the parameter name to try to find the correct lines.
- Copy and paste the relevant lines into a new file, or remove all other configuration from the file, preserving the JSON structure
- Optionally replace the values with replacement variable text. This will allow you to set the value per device.
For PMP/ePMP, validate that the structure is still valid with a tool like https://jsonlint.com/
You can also try exporting the configuration both before and after making the device change from wifi to TDD mode. At jsonlint.com click the Try the New Pro button at the top right. It will let you enter two files and perform a diff on them (configuration files from before and after setting TDD mode). This should highlight all the differences between them. Hopefully this will just be one parameter for setting TDD mode.
Be sure to maintain the existing JSON structure when creating your template. Depending on the device type parameters are nested within certain objects.
You can also try posting this question to the device-specific board. Experts there may be able to quickly pull up the exact configuration parameter that you need.