The only way to combine features of different course formats is to hire a developer to write a new course format with the features you want (or look for a 3rd-party format that already does what you want - https://moodle.org/plugins/browse.php?list=category&id=19 ).
Courses and course formats
Combining different formats
ការពិភាក្សាត្រូវបានបិទ ដូច្នេះអ្នកមិនអាចឆ្លើយតបទៀតទេ។