Make variables groupable/collapsable
In the project I'm currently working in; we have 6+ environments and many variables are unique to these environments.
To get a better overview of all the variables I suggest that you add the possibility to collapse or group the variables by name.

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Daniel commented
This would be a fantastic quality of life feature to add to Octopus.
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Patrick commented
I see this only has a small number of Votes but could this be included? It's a "Low Hanging Fruit" which would be very helpful.
Quite often we find variables are updated for the wrong environment. We have 5 or 6 environments, each with 40 or 50 variables. I assume people are getting lost in the massively long list of variables and accidentally updating the variable for the incorrect environment.
The ability to expand agroup for the relevant environment should be a fairly easy task technically and would help reduce the chance for human error.