CELLPROPERTYWRITE
Writes a value to a specified property of a cell.
If you do not specify an element for each dimension, the default element is used for the elements that you do not specify.
            Note: Like CELLPROPERTYGET, CELLPROPERTYWRITE is for ODBO-compliant databases only.
           
          The value is written as soon as the function is triggered.
            Note: We recommend that CELLPROPERTYWRITE is used only in the parameters of actions. 
            
          WBC is a non-dynamic equivalent of CELLPROPERTYWRITE.
Syntax
=CELLPROPERTYWRITE(value,"cell_property_name","data_connection","cube", 
"slice_element" {,"slice_element"})
          Example
=CELLPROPERTYWRITE("Cell note","note","BestPracticesOLAP","Status","[Status].
[Start]","[version].[actual]")
          Example
=CELLWRITE("123321","BestPracticesOLAP","Status","[Version].[Actual]","[Status].[Start]")