Sometimes after trying some things I end up with a bunch of obsolete entities that can be removed.
In the entities list I can check the checkboxes for all entities to be removed and then remove them all at once which is really nice. However I need to click each checkbox individually while most of them are listed together.
In other software you can sometimes select a range of checkboxes in a list at the time by checking one checkbox and then shift+clicking another checkbox. Then all checkboxes inbetween will also also be checked.