Stop at Boundary Button
When you click the Stop at Boundary button, playback stops at the next bar, beat, or grid division, or immediately, depending on the performance boundary setting you chose in the Segment Properties window. The keyboard shortcut is ALT+>. This button is displayed only while a component is playing.
When multiple segments are playing, as when you play a primary segment and a secondary segment, click Stop at Boundary to stop all segments. To stop playback of the primary segment only, press the CTRL key as you click the Stop at Boundary button.
When you are using DLS Designer, the Stop at Boundary button functions just like the Stop Immediate Button.