Is there any way to copy pen points and paste?

when using the pen tool say I create a shape with the lines and I want a symmetrical other side, there doesnt seem to be a way to copy the pen tool points and paste them, then join them, so what do people do? Does everyone just make it a selection, fill with colour then copy it? Id really like a way to copy the pen points but Im guessing its not possible

Opps caps lock was on,
so to duplicat a path you need to name the path, then right click on the path, and choose duplicat,
But I am afraid I dont think you can join the two paths, if someone knows how, Id like to hear it

Hi, I'm guessing you want to make one whole symmetrical shape out of one non-symmetrical path? Try this:-

With the Path selection tool (black arrow), select the path you've drawn.
Hold down Alt + Shift and drag to right or left to create a duplicate of the path.
With the duplicate selected, choose Edit > Transform Path > Flip Horizontal
Nudge or drag the duplicated path into the desired position overlapping the original path.
Make sure both paths are selected by Shift + clicking them.
Click 'Add to Shape Area' in the tool options bar
Click 'Combine' in the tool options bar

Edit: Forgot to mention, the Edit > Transform > Flip Horizontal only works when you're working on a floating layer, not the background layer.