BOX CLI Restrict external collaboration

Hi,

I have been using the BOX cli to create a user through powershell, although I want to restrict external collaboration for this user.
Sadly the CLI command to create a user does not offer this?

Usage:  users create [arguments] [options]

Arguments:
  name   The user's name
  login  The user's email address, not required when creating app users.

Options:
  --bulk-file-path           File path to bulk .csv or .json objects
  --app-user                       Set this user as an app user
  --id-only                        Return only an ID to output from this command
  -r|--role                        Role of user. Enter user or coadmin
  -l|--language                    Language of the user (ISO 639-1 Language Code)
  --sync-enable                    Enable Sync for this user
  --sync-disable                   Disable Box Sync for this user
  -j|--job-title                   Job title of the user
  -p|--phone-number                Phone number of the user
  -a|--address                     Address of the user
  -d|--disk-space                  User's available storage in bytes. Value of -1 grants unlimited storage
  -s|--status                      User status. Enter active, inactive, cannot_delete_edit, or cannot_delete_edit_upload
  --is-exempt-from-device-limits   Exempt user from device limits
  --not-exempt-from-device-limits  User is not exempt from device limits
  --is-exempt-login-verification   Exempt user from two-factor auth
  --not-exempt-login-verification  User is not exempt from two-factor auth
  --password-reset                 Force the user to reset password
  --as-user                    Provide an ID for a user
  -h|--help                        Show help information
  --no-color                       Turn off colors for logging
  --prefix-output                  Show prefix information for logging.
  --json                           Output JSON string
  --token                   Provide a token to perform this call

Is there any other way to set this?
I have looked into the update command, but this doesn't offer it either.

We really need this functionality, so any ideas?