The last episode which helps to find this trick was the structure of gallery glazing. I made it by spline with Renderable Spline modifier. I always use this modifier instead of Rendering parameter of the spline because I can make renderable several spline at once and I can copy-paste modifier between the splines.

Glazing was all bent and skewed so I edited structure spline point-by-point. After I've finished I've noticed that distance from the structure to glass was not correct, so I've had to edit all the glazing one more time. But last editing was done in separate Edit Spline modifier so changing distance (decreasing) meant fading the amount of this last modifier. Like Fade effect in Photoshop where you can alter the amount of last applied filter.

In 3dsmax you can decrease (unfortunately) amount of modifier by Morpher modifier. Add modifier to your spline/mesh object, do what modification you want to do with this modifier/modifiers, then create copy of this object, return model to initial state by deleting modifiers which influence you want decrease and add Morpher modifier. Then in Morpher modifier choose modified object as morph target and tune the amount slider beside of morph target slot.

This method works with meshes and with splines. One thing to consider is that modifiers doesn't have to change the amount of points in the object. Otherwise Morpher can't give you correct result.