...
The last button with the three dots opens the menu for Filters, Views and the possiblity to make an export of ALL results in the current workspace as CSV and/or PDF format.
...
Marking/selecting and clearing marked/seleceted lineitems
Marking one or more lineitems make it simple to apply the same action to all marked items. There are several ways of marking/clearing marked lineitems. When a lineitems is marked it will have a light blue background color:
...