Welding Vertices

Hello everyone,

I'm working with the 3DGS workshops, and in the model design section it tells me to weld the vertices of the enemys leg, but I can't find the welding button. Can anyone help me?

Thanks,
Masna

It is greyed out, if you didn't choose the vertices mode.
And it is perhaps hidden, in case that you use MED in window mode.
The weld button is between the merge and the mirror button.
Move slowly over the buttons to get the name of it shown.

Thanks Pappenheimer! I really appreciate it!