In Browse it is possible to delete multiple data. This function is only possible in the list view.
You can manually select the collections by checking the checkbox in the line. It is possible to select multiple lines. When there is a selection, you can perform the delete action at the top.
It is possible to select all data by selecting the checkbox above the first line.
By default, the list shows 50 lines. When you scroll down, 50 lines are automatically loaded.