Choose the unit of measurement for in- and output of data. It is important for using the flight planner and the load editor.
Download-WX: The weather is loaded automatically after starting. Clear-WX: The weather is deleted after starting FSrealWX and connecting with FS.
Export Metar File: A file is created with all available aviation routine weather reports. First box fill in destination, second box fill in file name.
User buttons are additional buttons to click to start a programme, to open up a file or a folder. These buttons have no impact on FS or FSrealWX.
After creating, editing or deleting a button you have to start FSrealWX again.