@Sue, @moniaqua many thanks for your quick reply! I understand the tool that lets you create a point along a curve. It’s pretty neat. However, i’m wondering if it’s possible to do is something like this:

In other words, is it possible to take an existing curve and split it apart by creating two equivalent curves (ostensibly with new control points)?
I tried to sketch out what i’m trying to do, in case it helps. The ultimate goal here is to make sure the resultant curve is smooth when the dart is folded out.
If it’s not possible to split curves, is the best way to get this effect as @moniaqua suggested — by translating the curve and then selecting the relevant points as necessary in the detail view? If so, how do you keep the draft from becoming cluttered with unnecessary lines?
