Reverse Match Frame currently moves the playhead to hover over the clip's matching point in the current timeline, but it requires an extra click to actually make the Timeline Panel the "active" panel. I have literally never used the Reverse Match Frame function without immediately clicking over into the Timeline panel - it should work exactly opposite to the Match Frame function, which moves the playhead in the Source Monitor AND makes the Source Monitor the "active" panel, cutting out the mouse-click middleman.