Thanx for quick reply Michael,

"...you are ... wanting more granular control"

Granular control is not what I'm looking for, yet.
What I am looking for is either:

1) A way to quickly change a profile of a Loft/Sweep surface applied over a twisted rail curve. Maybe like 'Find and Replace' command in text editors, but for profile curves
and/or
2) An easier way to smooth-out the kinks in a Loft/Sweep surface applied over a twisted rail curve.
Rail curves that are created with the ToroidalHelix command for example.

In my brief experience with MoI, to achieve a controlled, smooth-even, surface over a complex 3D curve I must carefully adjust the position and orientation of a minimum of Four profile curves for each loop. Applied over a Twenty loop Toroidal Helix, equates to Eighty adjustments (made easier with Cplane_Change script and Transform Array command, of course)
Then come the inevitable and desirable variations of the created profile surface/solid. And then I realize I only need a Twelve loop TorHelix... you get the drift.

My next experiments with facing twisted curves is to apply the face over the 'V' direction as opposed to 'U' as I have been doing up to now. may be that will be easier to edit.

"...you might want to check out the node editor..."
Love the MaxS Nodeeditor. But i don't have enough experience/understanding to achieve a planed result.

Thanx
Ivan

P.S.
"... edit individual parameters of the history ... I want to add in the future..."
When :D ?