Nope. A serious falling which I hope Eugen @Gargron will fix. It's the same when using the web interface on a mobile phone. I asked him a while ago to make it easier for us but it wouldn't hurt if others also asked.
Pretty much the same way as on Twitter, with one difference. You compose the first post, publish it, then reply to it, then reply to it again, and so on. But there's one difference. If the first post is Public, you can make all the others Unlisted. This way, people can follow the thread by clicking on the first post, but their timeline isn't clogged up with all of the other posts.
I am an amateur photographer, musician, trained psychotherapist, computer programmer, writer, and more. I share photos, bad jokes, and posts on tech, science, medicine, health, the environment, and other similar subjects.