Custom identity management for UI app wars?

I’d like to do a custom IdmIdentityService implementation as outlined in the docs, to work with SAML. However, I’m doing it for an instance of the Flowable Admin UI app, with the prepackaged .war files, and there is no explicit configuration for this. Is it possible to override that ProcessEngineConfiguration property from outside the .war file?

I don’t think the admin app supports overriding that … the app does use the ui-common package (https://github.com/flowable/flowable-engine/tree/master/modules/flowable-ui-common), it uses the RemoteIdmService there (https://github.com/flowable/flowable-engine/tree/master/modules/flowable-ui-common/src/main/java/org/flowable/app/service/idm) … but i don’t see that the admin app scans the classpath or allows for overrides.