How to shoot a bow with flaming arrows? (Tomb Raider (2013))

After the radio tower near the barrels of fuel will give this lotion.

and what keys to press necessary?

Now I do not remember, but like the mouse wheel not scrolling (clicking) or 1 can 2 press.

Digits to switch the arrows

anyway every time I did!
maybe it's a glitch? or I missed something.

DM31
Take a bow, and press 1. They must appear. After the part where you set fire to barrels after the tower.

All these gadgets are changing the figures of the weapons. For example, the gun took on a 2, and to put a silencer once again press 2.

The barrels of fuel go into the building they take this feature.(on the table at the far wall).
Select the bow and press on the number 1.(and the arrows to switch).

Fire arrows appear in the story in the slums after visiting the helicopter
and after the radio tower give the Tinderbox to zajigatel torches and stuff

Thank you all! it's all good !!!

and I can't do it, please tell me what to press? pressed 1, the comet does not turn off, the fire changed only after killing me(((((

Titovaya
choosing a bow, you hold the right mouse button(aim) and press again 1 key and the arrow lights up, and so it goes back to change.
Comet works when you press the middle mouse button.

Hollen
How to make a burning arrow ??? Just I have 0 and I don't understand

Flaming arrows will get when you cross a helicopter hill and end up in slums.
Then switch by pressing 1 between simple and burning.

I can change my icon to fires arrows on and even can see fires coming from the arrow.but when i shoot it only rope arrow comes out.is there any other button to shoot that bow?