multi-level substitutions

[HILVEN Wim (ITG/ASG)]

Is it possible to do multi-level substitutions ?=20
For example, one person actived substitution to another person, and =
this
second person actived substitution to a third person.=20
How can I do for the third person view the first=B4s workitems ?=20
 
Kind regards,
Wim
 
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