Good day!
I present to you a new macro for the Point Blank game, which will greatly simplify the process of fast scattering of grenades. For it to work, you need to have a coupon for a quick shift. For convenience, assign this macro to the «V» button. 
The principle of the macro is that it automatically throws a grenade and immediately switches to the previous weapon. 
P.S. Personally, I have been using this macro for six months and the results of its work have repeatedly surprised me.