@NachiHui @TimOfLegend No, it’s not available on the official app for Mastodon. I recommend using Toot!, Tooot, or MetaText (although it may not be developed further, but I could be wrong). The screenshot pictured is of the Mastodon Web browser view, so you would best do those things on the web browser. They do get reflected on the non-Mastodon app, if those get updated. My favorite recommendation for a Mastodon app on iOS is Toot!
@tootapp since it is being maintained.