In WP admin ➝ Voxel ➝ Settings ➝ Direct messages you can configure general settings related to the Direct messages feature in Voxel

General

• Maximum message length (in characters)

Uploads

• Enable file uploads
• Max file size (kB)
• Max file count
• Allowed file types

Real-time

• Update chats in real-time
• Show seen badge

Storage

• Delete messages older than (days)