The problem with both ideas is you will get a pad on both sides of the board and if you want a round pad I’m sure it is for some SMD application where you want it only on one side. If it were me I would use a square test point or make a custom part.
The only way I can see @opera_night method working would be to delete the unwanted pad from the other side in Gerbv after exporting the gerbers from Fritzing.