I think that adding this option could improve this process, sometimes I export objects and 3ds crash and I couldnt save changes and I need to redo the operation again, saving the .mat could save me time
If I have my cameras hidden in 3dsmax, they don't show up in Vantage. This has become such a pain as sometimes I forget to unhide them when exporting. Please allow a checkbox to 'export hidden cameras' in the Max plugin.