The Multimeter Jacks are easy enough to implement using the built-in drag and drop feature of C2 or you can even manually create you own drag and drop feature using the LERP movement.
Drawing the wire however is a whole other challenge.
Since drawing is usually setting creating many instances of a circle or square sprite while dragging the mouse across.
Meaning you would have to check collisions between many different instances and check if the ends are overlapping with the + and - Jacks.
I can't go looking for the separate capx files you need right now but I suggest you start in the "How do I" section.
You may want to redesign how you want to implement the wire feature for the earlier mentioned challenge.