Manage your rows (entities) here
Manage your database structure (tables/fields) here
Merge data between 2 different databases. More information is here
Export/import your data to Excel/GoogleSheets. More information is here
Plugins are free downloadable content (DLC), providing additional functionality. See the list of available plugins here
Addons extend database functionality. Unlike plugins, they do not require to download additional content. See the list of available addons here
Change skin at "Settings->Preferences->Skin"