Array modifier's coord. system I want to make array from sphere along line i marked red. I've already converted it into curve and choose it in "object" box of array modifier - didn't help.

As i understand, the coordinates of array modifier i marked red are global. Is there any way to make them different (local, for exemple)?
Add a curve with 2 control points
Edit mode, change type to Poli
On the sphere, add an Array Modifier select Fit Type=Curve and select the curve as target object
add a Deform/Curve modifier select the curve as target