After you file
If the income is coming in from Schedule K-1 and/or there is more than one Schedule K-1 in the return, Form 568 will not be seen. Regarding finding directions for this filing, they would be included in the California Electronic Filing Instructions. To see these instructions, either download the PDF or navigate to the Forms mode to find these under the California forms.
Otherwise, for more detailed directions, see the answer from awesome tax expert @JotikaT2 here: Filing Form 568 Support.
When I entered a Schedule C, even with Schedule K-1s in the practice return, I had the following screens appear sequentially for TurboTax Home & Business Windows, which included Form 568 and the payment voucher, Form 3522:
