So this is to humor Mikael Hasselstein more than anything else but here goes.
Here is the rule:
"During the Command Phase, each player chooses commands for only the ships that he controls. He may discuss his choices with his teammates, but he must do so openly at the table and cannot show his command dials to another player."
The question: Can a player use a visual aid to openly communicate so I don't have to state out loud the command I am thinking about taking to my teammate?