This posting is older than 6 months and can contain outdated information.
Hello Beni,
thanks for asking.
Actions with which you can easily achieve this will be part of one of 
the next releases.
Right now, you would have to either use custom actions and Remote 
Buddy's AppleScript commands - or, and that's what I did for the 
presentation, map the mouse move actions of the Virtual Mouse to the 
hold states of the buttons for the PowerPoint/Keynote/.. Behaviour.
Best regards, 
Felix