You can set up your own proxy pool in SessionBox, from which we can dynamically assign a random proxy to newly opened sessions. For this follow the next steps:

  1. Open the top left hamburger menu
  2. Select the "Settings" menu item
  3. Scroll down to the "Proxy" part of the setting list
  4. Here select the "Edit proxy list" menu item
  5. Provide your list of proxies in the shown popup
  6. After hitting "OK", the popup closes and these settings are saved
  7. Ensure that the above setting, "Assign proxies automatically" is enabled

Following these steps, you are done and ready to use these proxies for the newly added sessions.