Right now, that feature isn’t available within Trello. I’ll pass your interest in this on to our team for consideration—let me know if there's any additional info you'd like for me to send their way.
If you're curious about how our team decides on what requests we work on, this article gives some insight into that process: http://help.trello.com/article/724-submitting-feature-requests-for-trello. We've also published a blog post with more detailed and visual information here: https://blog.trello.com/feature-requests-unite-support-and-product
If you'd like to see our latest features and releases you can take a look at our dev board at http://www.trello.com/dev. Our mobile boards are available at https://trello.com/b/5tj4qAvo/trello-ios-app and https://trello.com/b/ud59t1fL/trello-android-app.
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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