It would be great if SonarQube allows adding custom marketplaces. Some companies develop custom analyzers with rules dedicated to specific projects. Now we can install all SonarSource and popular (Checkstyle, PMD) plugins by using Marketplace. All others (our custom) we are forced to update manually. It will be much easier if we can update all plugins on Marketplace tab.
I know there is sonar.updatecenter.url parameter, but I think about configure multiple marketplaces at the same time