Hi Adam,
Unfortunately the hub doesn’t retain any history, so you’ll need to track it all using OpenHAB.
That probably means setting up influxbd and grafana to store the data and produce the pretty charts (InfluxDB+Grafana persistence and graphing) that you can then link to in your sitemap.
In terms of setting up wiser in OpenHAB, it should be as simple as you say. Install the binding and load it up in PaperUI (it should detect the hub automatically). You’ll need to configure the secret token in paper UI and then trigger a discovery for it to find all the components (controller, rads etc).