Since this feature is considered "experimental," it isn't found in the standard settings menu. You must access Opera’s page—a repository for internal tests and advanced features.
Enabling is one of the simplest "pro-user" tweaks you can make to improve your productivity in Opera. It bridges the gap between basic browser functionality and professional download managers, ensuring that your high-speed internet isn't being throttled by outdated downloading methods.
To use this feature, copy and paste the following address into your Opera address bar and press : opera://flags/#enable-parallel-downloading What this does