Offset for orchestra libraries?

[Amberwolf]

As Promidi notes, that feature doesn't move the data visually, it only compensates for the timing during playback.

You'd need to actually move the data itself by that many ticks to visually change where it is on screen.   If you select that data, then choose Process - Slide, you can enter the number of ticks and choose Ticks, to actually physically move the data to it's "real" position.