Fences sometimes "glitches" and moves away from the main monitor even when there has been no changes in the settings for years. This very thing happened today, but I saw there was an update for Fences so I went and did that first.
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That is indeed what could happen with older versions of Fences that did not have the new 'per-monitor-basis' feature. Do you have this sent, PapaNinjago?

If not, please do so.
What would be more interesting, and what I believe Dr W is wondering, if if you had single-monitor Layouts for different task. For example, you may have a 'work Layout' that had Fences with work related Fences and items on said single monitor and perhaps another 'games layout' for play time.
Notice how that is not how people used Backups before - they did it to accommodate multimonitor issues in different environments. That task it so get people to use and trust that the new 'per-monitor-basis' largely solves that. Again, what we would be curious to know is how this can evolve into setting the desktop environment based on use, not monitors.
Finally, I go back to my previous post. Where's the option to EXPORT settings? I believe this may have been asked on these forum threads for sometime now. Why? I have several "Target-based rules" that I must take a "picture" of so that I can recreate them "manually" if I need to migrate systems, upgrade, or you name it. I don't believe there is a means to backup and restore those settings. I have not tested it, but I do not believe "Maintain daily backups (most recent 7 days will be kept)" does that.
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Exporting settings from within the app is indeed a common request. However, there is a manual process to accomplish it and has been so since Fences 1. I even wrote a batch file to make it as painless as possible.
https://support.stardock.com/space/SHC/1416429609/Backup+of+Fences+Configuration+Settings
We appreciate your feedback, and we understand change can bring frustration Papa, but please dial this back a bit in your replies.
...instead found this idiotic "link"
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Who came up with that? .....I will follow-the rest of the outdated "instructions" on the link you provided...
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Sean Drohan
Stardock Product Lifecycle Manager