Alright, I understand. I'm still surprised about this considering how much each of these things cost... That type of functionality should have been at least second in the priority list given the path digital music production has been following these last few decades.
In any case, I've come up with a band-aid for now. Since I can't get HX Edit with all of it's interactivity with my Helix Floor into FL Studio as a plugin, I came across a script that keeps the HX Edit application on top of all of my other Windows (including FL Studio). It's called "always-on-top". It's an AutoHotKey script that runs in the background in the notification area taskbar. You just click on the application that you want in focus, and then press the Ctrl + Space keys together to activate the 'stay on top of all other windows' feature.
I wanted to run only one USB cable to my computer, but given how Helix Native works currently, I ended up moving my guitar's 1/4" TS cable from the front input of my Focusrite 18i8 to the Guitar In of the Helix Floor. Then I used the XLR Outs on the Helix Floor and routed them back to the 1st and 2nd front-side inputs on the Focusrite 18i8. Both input ports on the Focusrite are set to "instrument" via Focusrite Control and are at 50% volume via the physical knobs above. I plan on controlling any additional volume needs via the large volume knob on the Helix Floor or FL Studio.
The only other change I've made at this point in FL Studio is enabling the Line 6 Helix MIDI Output "Send master sync" and setting the Port number to 1 (or whatever you set your device to use in the Helix Floor).
Hopefully this helps someone else.
I sincerely hope that Line 6 implements a DAW capable version of HX Edit... Is there a product improvement suggestion portal that anyone is aware of? In researching this more, I saw a few other users with the same concerns.