While MRP40 is running move the pointer of mouse to one of the menu items above and perform a left-click to open the item.

Alternative you can use the keyboard to open the menu item this way:

Press keys Alt+F to open the File menu

Press keys Alt+O to open the Options menu

Press keys Alt+D to open the Display menu

Press F3-key or keys Alt+G to trigger the GoMax Function
This forces the program (one time) to select the recently strongest signal in the recieved audio spectrum for decoding.

Press keys Alt+I to open the Info menu

Press keys Alt+H to open the Help menu