Please add a group deletion button for mobile players! It gets extremely frustrating when we have to delete everything one by one instead of clicking on the group deletion button that let us delete multiple things at the same time. For example, I'm creating a castle and I already got out if build mode so I can't undo everything. I can delete all my mess ups without having to click and delete, click and delete over 50 times. I feel like this would be a great feature for those who are impatient and want to be faster. Like I state before: deleting everything one by one is extremely difficult and tiresome. Please think about my suggestion!!