Is it possible to merge tangent patches into a single surface?
I was able to merge the 2 faces into one using -> Insert -> Synchronous Modeling ->Optimize ->Optimize face -> Leave the settings at Defaults->
Rectangle select all the faces of the part-> Apply -> You get a warning:
If it is ok to remove parameters from your part -> Hit Yes
You would get an information window to show the number of faces before and after the operation and the result is below: