finding audio settings from profile picture

Hi

I want to adjust my audio settings so I can use a bell in my meetings.  I go to my profile picture as instructed but the drop down menu only gives me plan and pricing and sign out.  No settings tabs... so I cannot adjust the setting.  If I go to settings on the left hand menu, I cannot find audio adjustment tabs to use.  Can anyone help?  Why is my profile drop down menu not giving me the full menu?

Thanks!

Pippa