Adding a Tabbar allows you to organize your user interaction screen and divide it into different screens (tabs). A user can click on a tab, after which the corresponding information will be displayed. Tabs are in fact a specific graphical representation of a Concept field. Therefore, tabs require a Concept field (single select) to work with. Clicking on a tab will select that Concept value. When you want to show the specific information corresponding to that tab, a conditional widget is required that contain an expression which relates to the tab concept. Therefore, for each tab that is used, a conditional with the desired content in it (When condition is true) should be created. More information about conditionals can be found below.