How do I make a continuous colored noise output using the DSP toolbox?

I have a function that passes, along with other information, the status of a button group. It selects what colored noise to generate through the AO. I need to use the DSP toolbox, but I cannot get the AO to give me anything other than default pink noise for a short time. I need it to be continuous and I have to select all colors of noise. How might I go about this?

Additionally I'm using R2015b (32-bit)