PUBG mobile, KEYs settings missing

[A Marginal]

Your program has two control settings menus ....

1. you have manu “Default Controller” (it just hint menu, but it does not set anything up, and shows NON actual info)

2. menu "key mapping", in which it is possible to assign keys, but it is completely incomprehensible to what FUNCTIONS it belong to

In the game itself, the elements are not the same as in the "key mapping" menu.

and for last , game key setting, ABSOLUTELY didnt match to any on this 2 menus.

QUESTION

In the game, the typical setting of the control keys does not work (its mean i even cant to FIRE with a "mouse left button"  and other) ..... 

and there is no method to do this.

what to do ?