I have a new idea (for some reasons I can't restore the old behaviour):
After one triangle was created manually (with three clicks or with one click), two vertices from this triangle will be automatically selected depending on the position of the cursor.
As a result, there is one click remaining to create the next triangle and you can create a "quad" with just four clicks (this was also requested by J.C. Tchang).
The cursor moves to the right.
The cursor moves to the top.
After one triangle was created manually (with three clicks or with one click), two vertices from this triangle will be automatically selected depending on the position of the cursor.
As a result, there is one click remaining to create the next triangle and you can create a "quad" with just four clicks (this was also requested by J.C. Tchang).
The cursor moves to the right.
The cursor moves to the top.