Rebuild control point and tree structure issues

hello,

I am rebuilding some curves changing the z values of a set of their control points ( items 1 to 20 ).

than i want to replace the new set of control points with the old ones and rebuild the final curves.

I have difficulties also in changing the items z values using a graph mapper or simply a slider because I don’t understand how to get the list of items from split tree component
control point graph mapper.3dm (295.8 KB)
rebuild control point with graph mapper.gh (12.0 KB)

Have a look at the attachment.


rebuild control point with graph mapper_re.gh (61.5 KB)

hey yes that s exactly what i was looking for… thanks @HS_Kim !