issue with analog keyboard not working..

I bought an analog keyboard so I could use the mouse and keyboard and be able to move as would on joystick controller. And it works. but theres a glitch where if your using the keyboard it thinks its a controller and it wont let you use the mouse at the same time. As the game doesnt allow you to use the controller in your left hand and the mouse in your right like in some games that lets that happen. Anyone know if theres anything I could do about this or if its just not built in capable of being done. Im sure people have even asked about being able to use them both at the same time. Im assuming my analog keyboard doesnt work because thats literally how it works. Any ideas? Help work arounds? Anyone know how to get this to happen? It would be SO COOL.