Ability to turn off auto suggestions

[opsidjflksdf]

I'd like to be able to turn off "Statement completion" and be able to summon it only on request (e.g with Ctrl-Space).
Right now auto-suggest pops up as I type which is tough to deal with when you're just trying to free type some code.
Attached are two screenshots.
I have Auto list members and Parameter information unchecked for All Languages, and they do turn off auto-suggest in C# but not in Rust.
Would be good to have a separate entry under TextEditor, for Rust, but even if it followed the setting for All Languages, it would be helpful.

Thank you for your hard work!