I've just installed a trial version of JetBrains Rider, migrated my settings from Visual Studio.
However, the hotkey for moving line up or down via Alt
+ ↑
/ Alt
+ ↓
doesn't work. It instead moves the caret 1 block up. The problem is that I've tried mapping "Move line up" using the Keymap settings, but I don't see them anywhere. I am literally unable to map "Move line up" to a hotkey in Rider.
Since I can't mark @LazyOne's comment as an answer, I'll have to post on my own.
Long story short, the solution was to literally scroll to the very end after searching for "Move line". Rider's search seems to be kind of odd. It highlighted every option properly, but it didn't filter them all out, so I had to manually find "Move line down" in the results.