as on some servers the default php memory limit is to low for Softaculous to install larger scripts, I've added the line:
to the enduser/globals.php
this really worked great without any impact till the last Softaculous upgrade replaced this file. I've already tried to use enduser/universal.php instead but this one is replaced every time I save the config.
Is there any file where I can add custom php directives which were not being replaced during a Softaculous update?
Sorry for the late reply.
Which panel are you using ? If you are using cPanel then you can add the directive in 3rd party PHP which is not used by the users installations. For other panel it is not possible at the moment.