Using-pepcli.md

@@ -86,6 +86,8 @@ Administrative tasks:
     - For users enrolled as an `Access Administrator`:
         - [`ama cgar`](ama-cgar) can be used to manage the type(s) of access that access groups have to column groups.
 
+- [`castor`](#castor) provides subcommands to perform administrative tasks related to (the import of) data from the Castor EDC system.
+
 ## `ama`
 
 The `ama` command's various sub-commands can be used to perform administrative tasks. While `ama` is short for "Access Manager Administration", it should be noted that `ama` provides subcommands for both the `Access Administrator` and `Data Administrator` roles. Users must be enrolled for the role appropriate for the subcommand they're invoking.
@@ -159,6 +161,30 @@ The output lists
 - The (participant) `Groups` that have been defined by data administrator.
 - The (participant) `GroupAccessRules` that have been defined by access administrator, i.e. which access groups have what type(s) of access to which participant groups.
 
+## `castor`
+
+The `castor` command's various sub-commands are used to interact with PEP's [Castor integration](https://gitlab.pep.cs.ru.nl/pep-public/user-docs/-/wikis/Castor-integration) functionality. Most commands are intended for (and restricted to) use by Data Administrator to configure the system for the [import of Castor data](https://gitlab.pep.cs.ru.nl/pep-public/user-docs/-/wikis/Castor-integration#import).
+
+### `castor export`
+
+@@@ more here @@@
+
+### `castor list-import-columns`
+
+@@@ more here @@@
+
+### `castor create-import-columns`
+
+@@@ more here @@@
+
+### `castor list-sp-columns`
+
+@@@ more here @@@
+
+### `castor column-name-mapping`
+
+@@@ more here @@@
+
 ## `get`
 
 After you have [`list`](#list)ed data, depending on whether data was inlined or not, you have IDs for data entries. You can retrieve the data as follows: