When trying to script Markers into Eden Editor, it was found that it is not possible to set the VariableName (Eden Attribute markerName) using the attribute tags listed.
Settings from: https://community.bistudio.com/wiki/Eden_Editor:_Setting_Attributes#Marker
_markerName = 'spawn_player_area'; _marker = create3DENEntity ["Marker", "EMPTY", [0,0,0]]; _marker set3DENAttribute ["markerName", _markerName]; _marker set3DENAttribute ["Text", "Markers Visible Name"]
This displays: