Many functionalities for Visualization, Color & Visibility, editing and modifying on the voxel structure (Voxel Selection) or the analytic data (GAD Object Selection),  modifying the Material ID of selected voxels (Paint), measuring distances and angles (Metrology) and saving the recently executed commands (Session Macro) are accessible directly from the GUI sidebar.

Some tabs of the sidebar are hidden if GeoDict is not in full screen mode. Expand and collapse the sidebar by clicking on the icon at the bottom. Each dialog can also be expanded and collapsed by clicking on the icon at the top of the tab. When expanded, the sidebar panel can be un-docked by clicking the icon at the top of the open panel and turned into a dialog that can be moved around.