To demonstrate how to fuse points, first let’s create a box then activate the Select tool and press 2 on the keyboard to set point select mode:
Select the 2 points you want to fuse (merge)
Press TAB in the viewport and select the ‘Fuse’ node
Click on the ‘Display point numbers’ option and note the numbers of the points you wanted to fuse:
Enter these number into the ‘Group’ field of the fuse node properties:
Slide the ‘Snap Distance’ slider up until the points fuse:
