How to configure Left and Right Analog ...

[HAR65]

... i mean, for example in "MGS TTS" or the Factor 5 -"STAR WARS"-games the gameplay make use of the Gamecube-Controller-special "click"-feature (by pressing the triggers hard). 
Until today ive got no idea how to map this userfriendly to my 360-/ONE-Con. As a sub-optimal solution i map it to the L3 and R3-buttons (by pressing the analog-sticks). But the feeling isnt that good as in the original.

Any idea how to solve my little problem? Thank you so much for any answer.

Harald