Customizable Time Series Conversion Funnel Experiment Results

[jurajmajerik]

Feature request

Is your feature request related to a problem?

Right now when we set up a conversion funnel experiment to test one of our new models, the conversion rate is essentially calculated over the lifetime of the experiment. This is problematic for us because with a new recommendation model, we almost always have a novelty effect. Therefore it would be wonderful to see how this conversion rate is trending over a particular time series (whether it be daily or hourly etc).

Now y’all have recently added the “Explore Results” button which then allows us to go to a conversion funnel insight and then switch it to the Historical Trends mode which gives us what we’re looking for. But once again this feels like I have to be a posthog power user to know how to get that information and requires quite a few extra steps.

Would be nice if I just had some options above the graph in the experiment view directly to play with this.

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Additional context

Debug info

- [ ] PostHog Cloud, Debug information: [please copy/paste from https://us.posthog.com/settings/project-details#variables]
- [ ] PostHog Hobby self-hosted with `docker compose`, version/commit: [please provide]
- [ ] PostHog self-hosted with Kubernetes (deprecated, see [`Sunsetting Kubernetes support`](https://posthog.com/blog/sunsetting-helm-support-posthog)), version/commit: [please provide]