Hey All,
Sorry for replying to an old thread. We came across this post when attempting to accomplish this same task.
Harshal has a good comment, that you need to be aware of the consequences of the blank entry for VIEKN.
But for those who come across this thread, like we did, and perhaps you have a scenario like the OP where the VIEKN entry was originally blank, then changed to a value and you need to get back to a blank, you can make a Z copy of the HTHUVIEK report and quickly modify it to allow for populating a blank VIEKN entry.
Hope this helps.
Thanks!
-Kevin