OpenBankingProject, for api call `create custom view`. How to grant the `cancreatecustomview` permission

I am using the Open Bank Project API Sandbox. My issue is when performing the api call Create a custom view on bank account

I am getting

{code: 400, message: OBP-20022: View does not permit the access. You need the cancreatecustomview permission on any your views}

Context:
After using a consumer app user-id to obtain a direct login token, I then sequentially and successfully perform the following api calls;
create a second bank user, create a customer, create a user-customer-link for the second-user, create an account with second-user-id everything is good.

At this point I need to create a custom view for the account following the steps here.Following these steps I receive the status 400 OBP-20022 above.

I have copied the full trace below.

From the trace it appears to be a permissions issue however when I try to add the cancreatecustomview role the api reports that it does not exist.

api request and response truncated for readability

request url https://obplite/obp/v5.1.0/banks/wl.1.uk/accounts/{USER_ID}/views

the json body is the custom view, here I have shortened then long list of view permissions with .....

{"name":"_test","description":"This view is for family","metadata_view":"_test","is_public":true,"which_alias_to_use":"family","hide_metadata_if_alias_used":false,"allowed_actions":["can_see_transaction_this_bank_account", .....    "can_see_transaction_other_bank_account", "can_create_standing_order"]}

response {code: 400, message: OBP-20022: View does not permit the access. You need the cancreatecustomview permission on any your views}

interpreting the response as a direction to grant the role cancreatecustomview

request url https://obplite/obp/v5.1.0/users/db40238c-8109-41ff-a605-9559291a4f4b/entitlements

request body {"role_name":"CanCreateCustomView","bank_id":"wl.1.uk"}

response include a long list of Roles shortened for readability

 {code: 400, message: OBP-10007: Incorrect Role name:CanCreateCustomView. Possible roles are CanAddKycCheck, CanAddKycDocument, ..............., CanUseAccountFirehoseAtAnyBank, CanUseCustomerFirehoseAtAnyBank}

in the grant role response above, the list of roles does not include CanCreateCustomViewAny help or feedback much appreciated.