You can choose the options for not only federal but each state return under Payments, Penalties & Extensions > 2019 Estimated Tax (2019) > General Information, on the line "Estimate options (Click on arrow to select from list) [Override]".

If you'd like to use 2019 tax projection rather than 2018 liability, you will also find the input screens for federal and state adjustments under the same section.

Input for federal and state extensions can be found under Payments, Penalties & Extensions > Extensions (4868/2350).

If you're looking for input for 2018 ES-tax and extension payments, the relevant fields can be found under Payments, Penalties & Extensions > 2018 Estimated Payments.