Trying to set up the Apex 5, but Space Station seems to be missing the "Allow third-party apps to take over mappings" option. Am I missing something?

Title, pretty much. Thought maybe this was a feature that was planned on Flydigi's side and support was announced prematurely, but after some searching I did find a screenshot with the option available from someone running an older version of Space Station (4.1.2.17, Here's the link to the page with the screenshot I'm talking about, if you're curious) compared to what I have installed (4.1.3.24, and here's a screengrab of what I'm seeing in the app).

I've already submitted a ticket to Flydigi, but with them being a company based in China I'm not exactly holding my breath that I'll get anywhere with them, so I'm hoping this is just a case of me being an idiot and missing something obvious.