I was able to find a number of articles (here and elsewhere) that indicate I should be able to double-click on the machines in the Synergy configuration screen. Please update this error message to more accurately reflect what's going on.
I found this forum from external search engine results, and was immediately blocked from searching anonymously by some message that indicated I need to wait 4 seconds before performing another search, but in reality, I was not permitted to search after any amount of waiting until I signed into the forum with my account. Please update the website main navigation to include direct links into installation, FAQ or troubleshooting content.
Hiding the forums behind a 'Help' button that looks more like a 'Support Ticket' isn't the right way to do this. I'm certain this is not an unusual request and I'd rather not trigger an individual support ticket that just gets repeated over and over. I was unable to find links on to any documentation whatsoever. Please do not respond with advice on how to remap physical keys directly on Ubuntu, I already know how to do this, but do not wish to. I only want the keys to be remapped when I'm controlling Ubuntu from the macOS physical keyboard. I do not want to remap the keys directly on my secondary laptop (Ubuntu) settings because the physical (local) key maps should remain consistent and familiar.