Can't find Auto Mask button in Adjustment Brush tool

[lesliel20598172]

Every screen shot I see shows an Auto Mask button below the Brush A B  Erase area at the bottom of the Adjust Brush tool, but I can't find it anywhere.  What am I doing wrong?  I'm trying to follow a tutorial (which unfortunately demonstrates in Lightroom CC, not Classic - so I know there are differences).  Thank you in advance.

[lesliel20598172 · Accepted solution]

Never mind.  I found the tiny almost invisible triangle that dropped down more options, including Feather, Flow and Density (which I couldn't find before either.)

[Laura Shoe]

Thank you for reporting back that you resolved it, Leslie!

[camerapov]

thanks for sharing what you found  you save me a lot of pain....

[Rob_Cullen]

A Hint-  Keyboard shortcut  [A]  toggles Auto-Mask on/off.