Can't stop suggestion box from closing when entering whitespace

[TheLudd]

I am making a lsp server for cucumber steps and those are multi word. I would like the client to be able to type a full sentence like "When I log in to the system" and have the suggestion box still show, as long as what the user types matches a suggestion from the lsp server.

However, when I type "When ", (note space at the end) the box closes and I have not found any way to prevent this. Is it possible to keep it open as long as the user types something that matches a suggestion from the lsp server?