About CCES 21569 BSP help document

I downloaded the BSP of 21569 on the ADI official website, which contains the drivers of some processor peripherals.It's like the folder in the figure below.

However, in CCES, the following path is followed:

help --> help contents

After opening the help document, it is found that only the "driver for ina3221 mount and bus voltage monitor" document is available, and other documents such as SEC driver cannot be found.

How do I get documentation about these APIs?