Bulk delete all conversations in Conversation Inbox

Hi team,
Currently, our bulk deletion tool only allows us to delete in batches of 100.
We have some customers who might like to start their Conversation Inbox afresh, but have thousands of messages inside.
Can we have an additional feature to “Select all” - so we can delete all conversations instead of doing it in batches of 100?
Thank you!

I currently have 44k messages in my spam box. 100 at a time isn’t cutting it…

We had almost 7000 come in overnight due to a breach. Is there any way to delete these en masse?