Hi @Vincent1, welcome to the Asana Community Forum and thanks for taking the time to share your feedback with us!
We already have a couple of feedback threads on these topics, I suggest you to add your vote to support these requests here:
- Receive new Asana comments in Slack channel
- Slack: Create custom notifications per project
- Limit Notifications in Slack when Project Linked
In regards to the ability to archive in Slack, it’d be very helpful if you create a new thread in our #productfeedback and add more details about this specific feature and a use case. This will allow other users to support your request as well!
I hope this helps!