Double Doors

 
By default the recursive function will open blocks 10 blocks away, but this can be changed with the 'recursiveOpeningMaxBlocksDistance' config:

Some more GIFs!
Click on any of the two doors and the other one will open as well:

Open iron doors with a single button, or any other configuration.

 

Works with trapdoors and fence gates on top of each other, by click or pressure plate/button.

Villagers are able to open double doors too!

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You may freely use this mod in any modpack, as long as the download remains hosted within the Modrinth ecosystem.

Serilum.com contains an overview and more information on all mods available.

Comments are disabled as I'm unable to keep track of all the separate pages on each mod.
For issues, ideas, suggestions or anything else there is the Github repo. Thanks!