Thanks a lot, working good!
split vertex. never seen before. Is it possible that it is not under the polygon menu??
In maya you can find every command in minimum 3 different places
like menu, icon, mouse+key commands like this
Originally posted by ctbram
With the vertex selected press the shift button and the right mouse button and a menu will pop up. One of the options will be "Split Vertex".
By the way two polygons connected by a single vertex is one of the forms of non-manifold geometry. As such you could also correct this by selecting mesh>mesh cleanup... and then going to the remove geometry section and ensure that "non-manifold geometry" is checked. This should automatically split that vertex.