Does rpcs3 have somekind of modifier button for the analog sticks (keyboard)

For example on dolphin, you press the key on keyboard and the analog goes all the way to the max, but then you can hold the modifier button which makes the range smaller and makes a analog stick going halfway. Don't know if i worded it correctly, but hope you get the idea, maybe one of you guys have played kb/m on dolphin.

Otherwise i'm always running in the game and the only way to walk is to push the analog stick a little, which i do not know how to achieve on a kb/m configuration.

Question pretty much is: Can i achieve this on rpcs3, or is there no such feature.