Sprint is a field in BetterBoard, so moving tickets between sprints works like editing any other field: on the board and in bulk.
How to move work items to a sprint
Section titled “How to move work items to a sprint”Select the work items
Section titled “Select the work items”Hold
Shiftto select a range of cards, or hold⌘on Mac orCtrlon Windows to select individual cards.Choose the sprint
Section titled “Choose the sprint”Choose the target sprint from the selection toolbar’s Sprint field.
Move the selection
Section titled “Move the selection”BetterBoard moves every selected work item at once.
See Sprint management for sprint fields and supported movements.