Need alter a best fit curve through points keeping first and last points at its ends..how?

[Steve1]

Thanks,

still hoping to hear from someone on :-

@Steve1

The answer I think lies in Q1…still wondering though on Q1) How does one draw an arcing curve through points as opposed to the S or multiple S curves that Control Point Curve gives ?

also Q3)

and Q4 an additonal question, why isnt there an arc best fit through points command ?

I have spent hours trying to draw arcs through points, just realised thats what I need, MORE ACCURATELY THOUGH… my arcs are not a constant radius, so a way of drawing curve through points but constraining the curve to an ‘arching’ type curve , as opposed to an S type curve…C type not S type !