[Help] Lever change system with two forces acting on it

[Carsten Svendsen]

 

I'm sure all of you have seen Akiyuki's train design by now, and I am building something that requires a similar spring system but it needs to be able to be affected from another function.

Below is a crude representation of what I want to achieve. Note that all the things are in a fixed position except for the outside force

Is this even possible? 

I don't care about the initial test setup, I will modify it to suit my build anyway, but I just need the basic how-to version.

Thank you for your time.

Edit: Nevermind, it's not gonna work anyway, I'll have to figure out something else.

Edited April 28, 2018 by Carsten Svendsen