Sorry for my English, I do not speak very good English.
This is a very simple way of Crouch-Jump without program, macro, or other, even NOT NEED to change the .INI .. only in the config of the game ..
It is enough to
-CTRL-LEFT + SPACEBAR => Crouch
-SHIFT-LEFT + SPACEBAR => Jump
Now, you only need to drop on SHIFT + CTRL-LEFT .. and jumped .. bravo you have succeeded: D
+ Rep if I help you.