Very sad that Helix still doesn't have Sublime-like multi-caret support. All I want is to Ctrl + Click and Shift + Alt + Arrows.
You can `C` to extend the caret down, or `s` to enter a multiple regex selection. It even keeps your copied/deleted text per caret.
I do wild things with it all the time, like changing a structured document into a completely different structure.
It's powerfully expressive. IIRC, you can select a region (such as a whole file), split the selection into multiple cursors, retain only the selections which match a regex, among other things.
Understandable, for sure, but the number of users who want their own "simple" addition means it gets overwhelming pretty quickly. Helix has deferred work on most extra functionality until after implementing a Scheme extension language. Once that's done, adding features might be as simple as installing a plugin.
I use kakoune, because I like the client/server architecture for managing multiple windows, which helix can't do. The less configuring I do the better, but I've hardly done any in the past year. It's nice to have the option.
I do use kakoune-lsp and kak-tree-sitter.
Relevant Github comment: https://github.com/helix-editor/helix/issues/10389