New constructor that takes just the section from the app.config file

While creating Couchbase client, we can use a constructor with (sectionName,bucket,bucketPassword)

Can we have a constructor which should only accept sectionName, and read bucket, password from config?

i.e.
Var couchbaseClient = new CouchbaseClient(sectionName);

The disadvantage of having bucket and password at this level, is hard coding or reading another config file just for bucket and password for different buckets.