Using running-width propagators by default

Hi,

I'm looking into utilizing running-width propagators in MG5_aMC, and I've played around with the model files (propagators.py, particles.py, etc.). However, I see that Madgraph doesn't use the propagators defined in propagators.py by default. I am able to modify the denominator of these propagators in this file by hand and implement these propagators for each particle I desire in the particles.py file to incorporate running widths. Before I go and set all the propagators of all particles manually like so, is there some option wherever the propagators are used by default to use running widths instead?

Thanks!
Phil