Can I modify/edit a value manually in redux-devtools without using a reducer?

It seems like I might be missing something very simple, but I couldn't figure this out.

I'm building an Electron app, and after the app launches, in order to debug some business logic, I want to modify a single value in a single piece of my state (account -> access_token). I want to replace an OAuth access token with a known stale access token so that I can test that the refresh_token is used correctly.

Is there a way to modify state manually with redux devtools? I've learned that I can use Chrome Devtools (Application Tab) to modify localStorage directly (I'm using redux-persist), but that is painful.

It seems everybody says "use reducers to modify state", which makes sense from an architecture standpoint, but it seems like the whole point of a redux devtools is to allow me to tinker and inspect (similar to how you can edit HTML/CSS from Chrome Devtools).

What I tried

1. Open redux-devtools
2. In the Inspector view, switch to the State tab to see entire state
3. Within that, click the Raw tab. That brings up a text editor for the state.
4. Manually modify the state.
5. I don't see how to save the state? The Persist button below doesn't save it. Anywhere I click from here seems to not save the state and instead resets it to its previous value.

Thanks for the time you spend working on this tool. It's extremely value to my team. Sorry if PEBKAC.