Philip H & pcmoor thank you for feedback it was very help full

Hi to all,

I'm a newbie with dynamic components and I'm finding some difficulties as such. Web is not so helpful like it was when it was with the basic sketchup. Anyway!

I've managed to copy components and position them with formulas. I cannot find a way though and here is my question:

Is there a way to copy a component as specified by the user and position them as he likes.

For example:
The user wants 4 copies of a horizontal member in a frame (let's say 5 metres in hieght). Then he positions them in
1st at 10cms
2nd at 20cms
3rd at 100cms
while the last at 400cms.
These are not standards or constant position as the user may vary the positions at will and most importantly he can use more or less than 4 copies (maybe 5, 9 or 10)

Is there a formula that can be used? Help is much appreciated..I'm stuck

Best regards
Kenneth