If you have more than one topic, you're welcome to create more than one question. You may get a better response by narrowing your query.
Data tables are not a native component in Maestro as they have display challenges on small screen devices. Instead, rows of data are typically displayed using repeating components.
Your other topics around populating repeats from a service response and linking rows to other service calls are both quite big topics and I would encourage you to create a new question for each of these and provide more details around your objectives.