Looking for an answer

Looking for an option to flow selected object along the polyline.

_arrayCrv

?

https://docs.mcneel.com/rhino/7/help/en-us/index.htm#commands/arraycrv.htm

if this solve your problem → mark this post as solution

if this does not solve your problem:
(1) provide more info - what do you expect as result ( a sketch ? ,
(2) and adapt the title to something that gives info about your question - for example “How to array + align Object along curve”

kind regards - tom