I looked into the new Keys feature, and I didn't see any shortcuts for Palette items. I know there are many elements to pick from of them but just wondering if there's a way to set shortcuts for the most used ones? e.g. Magic Connector
Sorry, not presently possible. This has come up before and it's to do with the underlying Eclipse GEF framework where the Palette items are not hooked into key presses. See https://github.com/archimatetool/archi/issues/898 and https://github.com/archimatetool/archi/issues/381