Injecting value into a YAML placeholder that is in a Map

Question

I have a YAML file in my config server that stores a map

demo-config:
  creds:
    user1: pass1word, pass2word
    user2: pass1word, pass2word
    user3: pass2word 

I have a pojo for that

@Data
@RefreshScope
@ConfigurationProperties(prefix = "demo-config")
public class Credentials {
    private Map<String, String> creds;
}

Now, I want to modify my code and change so that I can inject the 1 or 2 from back-end according to my business conditions.

My config file will have placeholders

demo-config:
  creds:
    user1: pass${type}word, pass${type}word
    user2: pass${type}word, pass${type}word
    user3: pass${type}word

Is it possible to put placeholders in between property values and change their values using a setter method?