As long as every candidate you'd like to move shares the same stage and state, you can select them and progress their applications in bulk.
Search for the position in which you need to progress multiple candidates
In Filters, select a state that the users are in
Tick the box below 0 Selected to select all
Having done this, you can deselect specific candidates you don't want to progress
Alternatively, you needn't select all if you'd rather only select a number of specific candidates
Having selected a filter (in step 2), a new dropdown option (--Select--) will appear immediately above the list of applications. Use this option to choose how you'd like to progress the selected candidates.