Clicking on a tab to switch between two tabs

["Martin Bialasinski"]

Hello,

I have three tabs open: X, Y, Z. X ist the active tab. I click on the Z  
tab, and it becomes active.

Now on Linux, you can click on Z again, and opera will switch back to tab  
X. This does not work in OS X.

Is there a way to enable this?

Also, I have trouble with switching tabs using the keyboard. Option TAB is  
assigned to the Witch application switcher, so it is taken. I tried to  
assign Control TAB and Shift Control TAB (control, not command!), but I  
was not successful. What should the lines in the ini look like?

The default Option PageDown/PageUp combination works, but I do not like  
it. And I noticed, that when you hold Option PageDown and press Escape to  
abort, the page "looses focus", that is, non of the shortcuts work, unless  
you click into the window.

All things on Opera 8.5. Any advise appreciated.

Bye,
  Martin