There is a possibility in PIM (new) to bulk change products status or “Show in webshop” checkmarks. 

How to do it? 

1. Select PIM (new) or PIM→Manage product catalog
2. Use different filters to sort out products you want to change
3. Tick products
4. Select Apply bulk change from above
5. Select whether you want to remove/add “show in webshop” checkmarks and/or change status of the product
6. Click Save
7. When the changes have been made, “Successfully updated!” will appear on the green background at the bottom