Note on the properties window that you can easily assign an 'Action' to the button from the drop down list, in this instance 'Previous Record' was chosen. 'pbPreviousCourseStudent' is highlighted in yellow in the properties window with a green arrow pointing to the relevent button. In the Navigator you can see that 'dsCoursesOverview' has the buttons 'pbNextCourse' and 'pbPreviousCourse' attached to it and further to that there is a sub datasource (linked to dsCourseOverview via properties link master and link child fields) called 'dsCourseStudent' that has the buttons 'pbNextCourseStudent' and 'pbPreviousCourseStudent' If you look at the 'Form Navigator' panel, you will see that various buttons have been attached to various datasources, this is easiest accomplished by clicking the datasource prior to drawing the button.

These are kinda necessary when building your forms, but you most likely dont want them displayed when your database is in use, so just untick them when using the database. The toolbars menu is displayed, showing you that the 'Form Controls', 'Form Design' and 'Standard' toolbars are displayed. Calc is a spreadsheet app thats very similar to. Microsoft Office uses VBA (Visual Basic for Applications) code, and LibreOffice uses Basic code based on the LibreOffice API (Application Program Interface). Above image represents the form in design view. Youll find it in your Windows Start menu or your Macs Applications folder.

Libre office base