We are integrating our application with Docusign API using JWT service authentication method. Per the current docs, using the integrator key we need to generate new RSA key pair for each integrator key. Our multitenant integration to Docusign then requires us to generate RSA key pairs for each tenant and load them into our application. 

In most public/private key/cert integration with other vendors we have seen that they allow using our own certs/keys. This is very convenient and simple since we only have deal with our own cert and not deal with storing many certs. Is there an option in Docusign to use/upload our own cert instead of creating new keys for every integrator id?