Vakarian

It's not in the dropdown as that specific DTC profile (or any in this case) isn't added to the mission file.
You can still import your own profile with the "Import" button and select whichever DTC file you wish from your PC and use it in MP sessions.

You sure about that? I've completely reinstalled windows few days ago and redone all of the cockpit which includes updating firmware to the VPC peripherals. Flashing new firmware clears all config and once I've done that I still had the button functionality meaning it's not something I've added on my own.
One thing to note is, that button (Button 1 in VPC software) will register only when you need to unlock the full travel back to the off position as that's the only point where it depresses enough. If you are anywhere else in the travel range, it won't reach the button.
Bottom line is, that is a logical button by default. If it's not on your end I'd double check the firmware.
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EDIT: As far as Kiowa goes, it works out of the box with absolutely no fiddling in software both on VPC or DCS end. Just ensure that the special options for the throttle for Kiowa is set to fuil range (don't know the exact wording by memory)
Make sure to check this post out. I haven't checked Huey lately but unless something's changed in DCS since then, this tutorial is the way to set it up for the Huey
 
 

At least in the Tiny Tim tutorial, they aren't even loaded so that's the issue.
As for the HVAR, make sure you have correct controls bound. For some reason there's rocket release and weapon release. I could launch HVARs on the training mission

Cycle the hardpoint power switch, that should fix it

Sorry it took a bit after the update to test, I was too busy flying the KW 💪
This issue seems to be fixed. I just tried to reproduce and I couldn't. Thanks for the fix

Could it be that the final altitude is in meters? That would roughly equate to 22k-ish feet.
IIRC few of the elements are in meters unless stated otherwise

IIRC that altitude is in meters, not feet so you need to account for that

Known issue, AFAIK should be fixed in the next update

From the changelog...
NEW: 3D Models. Newly created models for the B-1B, B-52H, S-3B (S-3B Tanker to follow shortly), “Centurion” C-RAM, and SA-10 (S-300PS).

Running the repair should redownload all modified/missing files and restore original functionality

It's not a control to bind, rather the button option. 
 
When you for example bind speedbrake on to "BTN_69", you can bind speedbrake off to "BTN_69_OFF". That "BTN_69_OFF" is in the dropdown menu which you need to select.
That way when you move your switch to on position it will deploy the speedbrake and then when you move the switch to off position it will retract it.

It's a "bug" but in a way it should not allow this loadout
 

This was intended change

CMWS sees a missile launch and it warns you. It doesn't know if the rocket plume at the back of the missile is from a friendly or enemy aircraft. That's why it's important to call your shot before you shoot so if you call "rifle" and then your friendlies CMWS starts yelling, there are good chances it picked up your launch.
This is working as intended, not a bug.

You do understand that you have to extract files from the archive first, no? You download a .rar file, you extract its contents somewhere (.psd files) and then you will be able to manipulate them in Photoshop.

F6, subsequent presses will scroll through all launched weapons