Question about how to specify "Runas=localuser" user

Hi team,
I have a question that Runas localuser option of Override.
https://developer.bigfix.com/action-script/reference/execution/override.html

I recognize that the “runas = localuser” command can execute scripts with specific user rights.
ex.
runas=localuser
user={names of logged on users}
password=system

When multiple users are simultaneously logged in via RDP connection, I want to specify the user who executed the offering action.
Is it possible to extract the user who executed the offering action from the relevance?
If possible, please advise how you can write relevance.