the Placker powerup is a great resource for "mirroring" cards across two boards:
There are integration tools that you can look into. One that I use for Trello pretty regularly is Zapier.
This route will require a lot of configuration, and also is not free.
There are other programs like Unito, Workato, AppyPie, etc that can perform similar functions when configured correctly.
Out of the box with Trello though, not possible as far as I am aware.
You can easily accomplish this using Unito's Board Sync power-up for Trello. Below I've posted two links that you may find helpful.
Trello + Trello Integration w/ Unito (http://bit.ly/2ZXqwhe)
How to Create a Master Board in Trello Webinar/Tutorial (http://bit.ly/2OB4oIa)
Let me know if you've found these helpful. If you have any questions feel free to reach out to me here, or on our website!
If you had to thrive a new habit during a lockdown, what would it be? Trello
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