KWorld Kanvus Artist 127 - Manual (Page 9)

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central button of rolling pad to switch the direction.
(b) Zoom : You can use the Rolling Pad to zoom in or zoom out. Keep pressing the
central button of rolling pad will change to Hand Tool.
(c) VOL : Adjusts the volume with the Rolling Pad. Click the central button of rolling pad
to enable / disable mute.
We design these key functions for Adobe PhotoShop Serial
applications. However, different applications might have different
definitions in terms of horizontal scrolling, Zoom and Hand Tool.
Thus, the rolling pad may not work in all kinds of applications.