How to delete all post in blogger ? Delete multiple posts at once in Blogger

Recently, I've just found out that Blogger has finally allowed people to delete multiple posts in their blog at once by adding a "delete" option in the drop-down menu, which is available in the post manager.

But after doing some tests, I found a SERIOUS problem – They DO NOT double check if you really want to delete the posts you selected when you click on the "delete" option: What if you select a lot of posts and want to label them but click on the "delete" option by mistake?

I'm not seeing this item in the drop-down menu. Not even on Blogger in Draft. The drop-down is still called "Label Actions..." in my interface. What's it called in yours? Can you provide a screenshot?

I found that the list being displayed is incomplete, use your keyboard down to navigate the list to bottom. And then you will see the complete actions, remove, publish, delete, etc...