stretching part of an object

[myxpykalix]

I want to make these fluted pilasters that i used for the wainscoting also for the door casings. I want to keep the rosette parts 3.5" tall and stretch the center part to make the overall object a total of 78.25" tall. If i do a simple resizing it makes the rosettes 10+ inches. So because this is all one object and the pilaters are half rounds I can't just do a flat fluting toolpath.
Is there a way to just stretch the center leaving the ends the same size or do i have to take the object apart by taking the 2 ends off stretching the center, reattaching the ends?

[gundog]

Seems some node editing would work. Node edit mode click on nodes you want to stretch click properties and enter the new Y cordinate. I usually move the bottom of the item I want to stretch and move it to that amount then just change the Y coordinate to 0.

How were the flutes drawn were they just line vectors or rectangular pockets?

Mike

[myxpykalix]

There are no nodes with this it is a one piece 3d object. The flutes are a part of the object and not a seperate 2d fluting operation otherwise i could just make the lines longer.
I'm beginning to think i need to break this apart stretch the center, reattach the rosettes or just make them seperately.

[knight_toolworks]

yes you need to break it unless you want ovals (G) but it is easy to do.