AVer SA series - Manual (Page 264)

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10. Please click the X to adjust 4 coordinate points by order. If adjustment is no reaction, please go back to
step 6 and select another USB Controller icon and do the following steps.
11. After adjustment, click OK to complete the setting.
12. Now, User needs to setup another touch monitor. Select General tab and click USB Controller which
other than the one has been setup. And then, select Display tab and enable Multiple Monitors and
Map to main display if system has only one display monitor. After that, double click Monitor 2. The
confirmation windows will popup, click OK to accept the setting.