First case: tablet in the robot is positioned vertically
Not all the robots on the market allow to choose a tablet position, so we assume that the user has the BotEyes Telepresence Robot.
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/blog/show/how-to-mount-a-tablet-in-the-telepresence-robot-head-horizontally-or-vertically-3