This was something that was added on Synergy 1, and I believe it's a must. My current setup has two computers with different screen sizes and at different heights, Now I love the ease of positioning each screen on the UI (even though I would absolutely love a more precise way of doing it), but there is no way to resize the screen on synergy UI. This makes the transition between both screen ugly, as the y-axis position won't match, making the pointer jump from screen to screen.