Creating a Gantt Chart from 22 project boards?

[Greta Boers]

What is the best Power-Up in Business Class to create a Gantt chart from 22 different project boards.  I want to create a separate critical path for each of these project boards. We've already tried Butler and Big Picture.  Thanks. 

[Vinod Ramadoss]

Hi,

I made use of Teamgantt for the same

https://trello.com/power-ups/5970d4298c14fdf691c95a76/teamgantt