How to add guest from one board to another board

[Ron Genise]

I have invited a colleague to be a guest on Board A and would also like them to be a guest on Board B.  Is there a way to add them as a guest on Board B without sending a second invitation?  I am using the free version of Trello.

[Crystal Davis]

Hi Ron,

Crystal from Trello Support here. 

You can make a team under the free version of Trello and add your colleague as a team member. Then you can change the boards privacy from "Private" to "Team visible." This will allow them the ability to see all the boards you create/move within the team! You can find out more about how to do that here: https://help.trello.com/category/700-category