Tilt factor in deform

Hello Team, I'm using fix deform to shear a triclinic periodic cube which is symmetric about origin. Side length of cube in x (say) is -3.5*partDia to 3.5*partDia. Please see attached image t_0.png for initial state, note the coordinate system. I'm using

fix boxDeform all deform 1 xy erate 31 remap v

and everything works fine. In this, we see that the box flips when top corner travels a distance of half the box width as shown in attached image t_t.png in the x-direction.

1. Can we alter this travel distance to a user-defined value, say, quarter of a box length?

Thank you.