Deleting and creating edit points

1

I was wondering if there was a way to delete an edit point to end an object. For instance, if you have a circle (four edit points) with the outside function instead of the fill function and you delete an edit point, you essentially end up with a lopsided semi-circle. What i’m trying to do is open up that circle to create an “arc.” (I don’t want to create an arc, this is just an example.) Similarly, is there a way to join edit points? Sometimes when an image is imported, an outside line may “skip” a space and then continue. I typically open the edit points and drag the line to connect it. It generally works but i’m looking for a way to connect those lines permanently. If not, maybe in a future update of easel. Thanks.