beep frequency

Since the beep cell does not have a control input, you will need to use two beep cells and then use a logic cell to choose which one is output.

The AB In / CD Out Condition cell should help accomplish this.

https://wiki.analog.com/resources/tools-software/sigmastudio/toolbox/basicdsp/abincdoutcondition

You can compare a GPIO input to a static DC value and use that to select which beep to output:

You can also compare two arbitrary values and choose which beep to output:

These are just a few examples, but with the flexibility of SigmaStudio, you can create many options for logic-controlled or GPIO-controlled signal flows.