Hi Ann

Some links for keyboard commands if you haven't come across them before. Note that I've already raised with Cisco that there are some options which are missing i.e. raise your hand, mute/unute video. Hope this helps.

WebEx Meetings

https://help.webex.com/en-us/84har3/Cisco-Webex-Meetings-and-Cisco-Webex-Events-Accessibility-Features

WebEx Training (if you are a presenter) https://help.webex.com/en-us/krcq8ab/Cisco-Webex-Training-Accessibility-Features