Developer Thomas Mueller from Germany has a blog post up highlighting a utility he wrote which installs Delphi XE6 packages from the command line. The utility is called dzPackageInst and can be used to install and uninstall design time packages. He also highlights a second utility called Delphi Package Installer that is similar but has more features. Source code for the dzPackageInst utility is available on SourceForge or a binary version is linked for download. With this utility you could automate installing and uninstalling design time packages very easily. If you are maintaining a component in multiple versions of Delphi this could reduce the time it takes to do that across multiple Delphi versions. I believe VCL and Firemonkey packages are the same so it should work for both frameworks. I’m not sure if it will work with AppMethod out of the box but if not the source code is available so you can modify it if needed. You could combine it with the Delphi Dev Shell Tools Utility to install packages from the Explorer right click menu if it doesn’t have that functionality yet.
Head over and check out the full blog post about the command line package install utility for Delphi XE6.