i play with an usb keyboard , ngs classy , keys are like in a laptop , thin.
it has keylock , it support 4 keys pressed at the same time
if u are playing in a laptop , and u wanna avoid the keylock , play with 2 keyboards (laptop's keyboard and another one

)
when i come back to my house im gonna make a video for u of me roping with this style ,its very nice and its not as uncomfortable as it looks , u must get used to it :p
something like this pick