How to override csf-key properties in REST adapter with invoke activitie

Hi,

Actually, I use Oracle Soa Suite 12.2.1.3 and I use REST adapter to call GET, POST and PATCH operation.

I use oracle/wss_http_token_client_policy as WS policies and I set an override value for the csf-key properties, but I cannot change it by the invoke activities.

Contrariwise, I can do it when use SOAP adapter , and below the xml balise :

<bpelx:toProperties>

            <bpelx:toProperty name="csf-key">"XXXX.credentials"</bpelx:toProperty>

 </bpelx:toProperties>

Can someone help me how can do this in REST adapter ?

Thanks