When configuring your computational environment, you may wish to have access to additional or alternative package repositories. To do so, add the package you need, and then click the gear icon next to your preferred installer.
The built-in package management system offers the following configuration options:
Adding Ubuntu PPAs;
Adding Conda channels, such as bioconda, r, or conda-forge (this can be helpful for installing additional languages, such as R and Julia);
Changing the CRAN mirror (in order to use MRAN, for example).