This article explains the enable drag option for in the Elo driver

Starting from version MT 7.2.1, a new option “Enable Drag” is available with either “Click on Touch” or “Click on Release”

For users dealing with fixed UI, for example, a POS station where user’s clicking is the only function to perform, we recommend “Click on Release” or “Click on Touch” without “Enable Drag”. This is the default when either of the two touch modes has been selected. This default selection provides fast/reliable clicking events. Under this default setting, the user will not be able to do normal desktop operations like dragging desktop icons, moving a Window around.



If users prefer either of the two touch modes but also have to work under Windows desktop environment where dragging a desktop icon or moving an application window around is frequently needed, we recommend the users to choose either of the two touch modes with “Enable Drag” option, this will allow users to perform most of the common desktop operations.