RIEVTECH STUDIO SOFTWARE MANUAL For “ The Drop-down List ” component, the most settings of the “ Selector Setting ” property TAB are same to the “ Check list and selection boxes ” . The difference is that there is an additional item of “ Pop-up style ” for the “ The Drop-down List ” . The default is “ Popup Downwards ” . The “ Pop-up upwards ” is optional. And it can be set according to the actual requirement. See the figure below. Popup Downwards Popup Upwards The figure below shows the situation when “ The Drop-down List ” and “ Check list and selection boxes ” appear on the picture at the same time. 196