Zedonk allows to perform actions on a selection of records.
You can select the records one by one
..or select the first record, press and hold [Shift] button on your keyboard, then select the last record to select multiple records
..or select the whole page with the corner tick
..or select all records
(If you have added filters, this will select all records after the filters are applied)
Then you can apply the actions you find in the [X Selected] menu
Please note, your selection is saved. To create a completely new filter selection, click Clear All first, then Select All.