‘Afternoon all . . . 
I have read some inquiries regarding Markers - MultiMarkers & PolyMesh lately, so I thought I’d try to establish some facts for all three items in this post.
1st: A Marker can remember everything about any object created, if you FIRST select “Marker / Modifiers / & highlight, or ( turn on ), all the choices, or ( buttons ) that you want recalled, or ( remembered ), by each Marker”.
2nd: You MUST have the “MRGB” button selected before placing a Marker, if you want the Marker to remember everything you have selected in the “Marker / Modifiers” window. If not, your Marker will come up short in the choices you have selected in the “Marker / Modifiers” window & the object placed on canvas using the Marker will not have every attribute you have chosen.
3rd: When using the “MultiMarker” tool to create a single object from multiple objects, you will get every attribute assigned to each object in the group, if you first follow the 1st & 2nd steps above. You will get Colors / Materials / Textures / Transparency / Hidden Points or Polygons, every attribute that you get with a single object, you will get with the “MultiMarker” object.
4th: If you choose to convert your “MultiMarker” object into a “PolyMesh” object, you will not get every attribute assigned to the separate objects before converting, like as with the “MultiMarker”. What you will get, is a Texture created by converting your “MultiMarker” object into a “PolyMesh” object. If you select “Texture Off” in the Texture window you will see that your “PolyMesh” object will become one solid color with one solid Material covering the complete object. If you re-select the Texture created in the conversion, you will see all the original Colors & Materials again show up, covering the “PolyMesh” object. The created Texture appears to remember every Material used in the original construction of each object, & although I must admit that I don’t completely understand the workings behind this, it is a fact. Each & every object in the construction of the “PolyMesh” object, will appear to have each Material on each section of the object just as it was before the “PolyMesh” conversion. The only thing you have to do, to eliminate the need for saving the Texture created by the “PolyMesh” conversion, is to select “Tool / Modifiers / Texture / TEX>COL”, & if you initially created each object with a high enough resolution, or ( Polygon Count ), then the whole “PolyMesh” object will take on all the original Materials & Textures by coloring the object’s polygons, from the created Texture.
At this time, the only attribute that can’t be converted to a “PolyMesh” object, is a hidden Point or Polygon.
I guess that’s about it, I can’t think of anything else. I hope this helps some to understand the workings of the “Markers, MultiMarker & PolyMesh” tools a little better??? Have a good one . . . 
Mark.
