Change client credentials of a client app after initial load in identityserver4

Question

We are using identityserver4 for single-sign on and to protect our api resources. We have a scenarios where we are exposing our API endpoint to external apps using Client Credential mechanism. Now the business ask is to not share the client-secret to users in an offline mode rather than give them an option to do a self serve for periodically rotating their keys.

Now the problem is after the application starts and initial load of the in-memory clients, incase if we want to refresh the ClientId-ClientSecret for a Client we are unable to do that and the new credentials are in force only after we restart our application.

 services.AddIdentityServer()
                .AddDeveloperSigningCredential()
                .AddInMemoryPersistedGrants()
                .AddInMemoryIdentityResources(Config.GetIdentityResources())
                .AddInMemoryApiResources(Config.GetApiResources())
                .AddInMemoryClients(Config.GetClients(Configuration)) //Loading Clients
                .AddAspNetIdentity<ApplicationUser>()
                .AddProfileService<ProfileService>()
                .AddDeveloperSigningCredential();

We are looking for an option were we can dynamically refresh client credential for our client apps. Any help is appreciated. Thanks :)