Tools - Selection Conditions - Enable

Ribbon bar. Select the Tools tab. Click Selection Conditions and from the menu, select Enable...

Classic menus. From the Tools - Selection Conditions submenu, select Enable (or click the toolbar button located on the Spreadsheet toolbar)...

...to toggle between activating and inactivating the case selection conditions. Note that when this command is toggled on, the status bar displays Sel: ON. If it is toggled off, the status bar displays Sel: OFF. To view the case selection conditions, from the Tools - Selection Conditions submenu, select Edit.