The top menu bar and tool bar are global to the application.
View menu
Views and pages have their own menus. You can activate this menu by clicking on the upside-down triangle at the top-right of the view, next to the min/max icons.
Column menu
Views and grids have column menus. Right click on the column header to launch the context menu for column.
Context menu
Views and grid and text pages have context menus. Right click on an item in the view or a cell on the page to activate the context menu.