SetEnvIf Request_URI problem

#1
Hello,
we recently migrated a high traffic site to litespeed, everything works except using a directive that was in use on apache in the old server.
The directive is as follows:

SetEnvIf Request_URI "^/waitingqueue\.html$" log me
CustomLog "|$/var/www/vhosts/xyz.com/httpdocs/logcoda/logcoda.sh" "%a" env=loggami

which is used to manage a user queue system that works in the apache configuration but ignored by litespeed.
can you help me understand how to enable it, being a beginner with litespeed it could be simple but I can't find a solution.
thank you
 
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