If you're using Mastodon on a computer, there's an optional "advanced" mode available on your server's website.

By default Mastodon uses a simple single column, but advanced mode is a Tweetdeck-style multicolumn interface that lets you add as many columns as you want. This includes special pinned hashtag feeds where you can combine, require or exclude particular tags within a single feed.

To find out how to activate and use advanced mode, click here:

➡️ https://fedi.tips/how-to-activate-mastodons-tweetdeck-style-advanced-web-interface

#Mastodon

How to use Mastodon’s Tweetdeck-style Advanced Web Interface | Fedi.Tips – An Unofficial Guide to Mastodon and the Fediverse

An unofficial guide to using Mastodon and the Fediverse

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Okay, I tried to reset it back to having multiple columns, but it didn't work for me. Help. tks.