I just saw the below video from the Curbal channel, and was getting ready to add this 
I use something similar to this (an Excel addin), and it really does make the design process much easier.
The video above that @BrianJ has linked to is the Microsoft info, Ruth’s video digs into how she would use this tool to collaborate with remote team members.
Definitely worth taking a look at. Even if you don’t have the sketch capability in PowerPoint (using an older model), the techniques discussed are still good for design planning.
