The MergeCoplanarFace combines adjacent coplanar faces of a mesh, polysurface, or SubD into a single face.
The MergeAllCoplanarFaces command combines the faces of each planar region on a mesh, polysurface, or SubD into a single face.
The MergeFaces command merges a connected set of SubD or mesh faces into a single face.
I think David was asking about the “chat” button that Kyle circled. I’m interested too. Would make it much easier and immediate to annoy Kyle, Scott, Wim, etc. Unless, of course, McNeel has added scriptreading non-English speaking “helpers” to keep up with the rest of the industry.