When there are multiple clips selected and there are gaps between each clip; to be able to drag the start and/or end of one of the clips out and it will effect all of the other clips selected. (See screen recording to see that only one of the clips gets effected by dragging out and not all)
Of course, the effect of this idea would only go as far as the shortest gap between any one of those clips but there’s been a few instances in my workflow where I’ve need to drag out the ends of multiple clips, especially with Adjustment layers that have various FX on them etc.
Also for when an AI cutting tool has gone and cut too much silence and it just needs 1 or 2 frames extended on each clip (in this case there doesn’t specifically need to have gaps between each clip