NeoVim

My config can be found here

Autocomplete Key-Bindings §

The key bindings for the autocomplete feature are defined in the mapping section of the cmp.setup function:

• : Select the previous suggestion in the autocomplete menu. • : Select the next suggestion in the autocomplete menu. • : Scroll up in the documentation window. • : Scroll down in the documentation window. • : Show the autocomplete suggestions. • : Close the autocomplete window. • (Enter key): Confirm the selected suggestion.

So, to use the autocomplete feature, you can press to show the suggestions, and to navigate through the suggestions, and to confirm the selected suggestion.