This feature is only available in Preorder Pro + Back in Stock, the previous version of the Magical Preorder app.
To update multiple products at once:
In the app, click Bulk Settings from the left-hand menu.
Click Add New Bulk Setting in the top-right corner.
A modal will open showing all your products.
Choose Start Now or set a specific time period for the bulk update.
Search for and select the products you want to edit.
Toggle Preorder, Coming Soon, or Notify Me for each selected product.
When you're ready, click Schedule Now.
Your settings will apply to all selected products based on the schedule you chose.