Make it possible to create a kind of persistent/global component palette. Right now, I have to recreate my custom component palettes for every new gui project - this is really annoying, especially considering that adding multiple components is a pain as well (see IDEA-33139).
It would be great if one could define e.g. a "SwingX Palette" once and link it to the swingx-jars. When I start a new project and use the GUI Designer, the SwingX-Palette should be available right away. As soon as I use one of the components from that palette, IDEA should add the swingx-jars to my project.
A simpler way could be to offer a special Java-GUI-Module type and let me mark the additional GUI palettes I want to use (a little bit like the dialog where one can choose the facets to use). All required JARs could then be added to the project automatically.