Note: It may be necessary to check the user permissions first.
1. (Hamburger Menu) --> Stack Management --> Saved Objects
2. Select the dashboard and Export
3. Open with Notepad++, CTRL +F, change the Search Mode in the bottom left to Regular Expression and search for the ID
4. Delete the old ID
5. Insert the new ID
6. Save the file
7. Saved Objects --> Import --> Add file and overwrite old dashboards
A user hit an error within their Kibana Space where they had access to the [Metrics System] Overview page within their Space but when they clicked on one of the host names in the, Host | CPU usage | Memory usage visualization, they were met with an error, "Dashboard not found. Sorry, the dashboard you're looking for can't be found. It might have been removed or renamed, or maybe it never existed at all."
I had initially copied over the dashboards by exporting the prebuilt [Metrics System] ones but after hitting these issues I deleted them and then moved to using the "Copy to Space" function. Each option seemed to give me the same error. What Elastic/Kibana appears to do is that it gives these dashboards new ID's within the Space (makes sense) so unfortunately the links break. The next step was to figure out what the new dashboard ID is in order to replace the old ID with the new one. In this case the original ID dashboard ID was system-79ffd6e0-faa0-11e6-947f-177f697178b8 which needed to be replaced with 80504f1e-d081-4920-9979-e88f2953a52d. IF you go to the [Metrics System] Overview dashboard and click on Edit --> Cog (Wheel) --> Edit Lens theres no way to edit the actual URL/ID that links to the [Metrics System] Host overview page because it doesn’t utilize Markdown. The next step seemed to be to go to the Saved Objects section, export the files, search for the original ID in Notepad++, remove it, add in the new ID, save and then use the Import function in Saved Objects with overwrite existing dashboards to get the link working.