Yes, in my second screen capture the Classes tab is shown, but as I said when I click on it nothing activates, nothing happens.
Yes, I understand that I have to select Classes tab to view classes, but again I can't activate it - nothing happens when I select it. Some tech glitch is happening.
No, not that flyout, the one that is accessible just on the upper right of the Navigation palette - left-hand side of question mark ? on the palette.
But to answer your question, yes it is show as being checked as shown here. Also if you look at my FIRST screen capture above you will see a blank space between the other tab icons. In order to see the Classes tab I have to shuffle these around until it appears (screen shot TWO), but then when trying to select it I can't with pointer. Nothing happens. I don't know what is going on. Maybe I need to call tech support or delete and re-download program?? Thanks!