This seems like it should be really simple but is not for me. I can't seem to set up my amps to record through the usb inputs. I have a new Spark and Code pracctice amps that have cool effects and want to record tracks without using mics because I record a lot at night. I am using my Scarlet 2i2 interface, Optiplex i7 7010 32 ram and SSD. I have been recording with the Focusrite 2i2 drivers in ASIO but also installed ASIO4all. When I pull up audio in Cakewalk preferences The ASIO4all and the Focusrite have checks in the boxes but the Spark is light grey and won't let me check the box. Any help is appreciated thanks in advance.