I'd like to for the board and port (at least the board) be saved. I work with different projects with different boards. As an example currently working with one project with an ESP32 and another with a MKR1500. If I compile one and then open the other board I get compile errors. It's not a big deal but sometimes when you've been away from using multiple projects it takes a little head scratching to realize the compiler errors are because the wrong board is being used. I see one solution is to move to Eclipse with the plugin. So there is a solution but there are things I like better with the IDE over Eclipse. Maybe there is a solution to this that I've not uncovered in my searching? It seems that something simple such as a file with named projectx.prj (or whatever) could be created in the same directory as projectx.ino to save the configuration.