Question Block user-agent and stop logging

[Azurel]

Server operating system version

AlmaLinux 8.10

Plesk version and microupdate number

Plesk Obsidian 18.0.74#2

I have a non-standard User-Agent (app/scrapper) that sends thousands of requests in few seconds, which severely bloats my access_ssl_log in different domains. Is here a way to prevent/block this in Plesk? The block must target the application agent, not the originating user IP. The user IP as website visitor is welcome.

I use this rule in a global Apache config file (/etc/httpd/conf.d/block_useragents.conf) to immediately stop the requests with a non-error status and set a variable:

<Directory "/var/www/vhosts/">
RewriteEngine On
RewriteOptions inherit

RewriteCond %{HTTP_USER_AGENT} ^botname [NC]
RewriteRule .* - [R=204,L,E=nolog:1]
</Directory>

How I can instruct Plesk to skip all logging in "access_ssl_log" when the custom variable nolog is present?