I am working on aliasing columns in Sisense.  The example code shows how to alias columns, however, I am worried that there is a limitation of only one set of custom column headers per dashboard load.  

For example for User 1 we may want the column header for 'Field 1' to be 'ABC' and other times based on a filtered value to be 'EFD'. 

Can you let me know if this is possible?  I am worried that the event "beforealiascontextinit" will only fire once before the dashboard loads and I will not be able to re-alias the column.