Hi Steven:
Thanks for your message, the custom dashboard (for Elastic 6 and 7) may be imported from the github link.
The uptime section only applies to the last versions of Elastic Stack, I think from 7.2 version. The url is like:
app/uptime#/?_g=()
If you are using spaces in Kibana UI, check if this section is activated.
I'm using the official Elastic Search with Basic License, not the Amazon fork. So probably this section is not included in OpenDistro, whose UI is similar to Kibana 6.x.
Anyway, it is not very difficult to make this section with custom dashboards, visualizations and searches (at least the 95% of this section).
Kind regards.
--C.