Editora 0.20.0. Archived, so links from that release keep working. Read the 0.24.0 page →
View: Float Tool Window
view.floatToolWindow Detach the active tool window into its own window, or dock it back.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for View: Float Tool Window, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.