GIMP Version: 2.8.10
Operating System: Windows
GIMP Experience: Intermediate Level

List any relevant plug-ins or scripts:
add_alpha.py

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I'm trying (obviously) to add an Alpha Channel to multiple layers at once. I found old references to a plugin called
add_alpha.py
but after many searches and wild goose chases, I'm unable to find it or something similar.

Anyone? Bueller?

Something similar: all-layers-add-alpha.scm

https://gimpchat.com/viewtopic.php?f=9&t=1718#p21494

Usual issue with old scripts, will give an error if there is a layer group involved, otherwise works ok.

Edit: This the py_add_alpha.py code snippet from the same thread, just added the plugin registration. Unzip, put in your Gimp user plug ins folder, Menu entry is in tools.

Still does not convert layer groups but at least it does not generate error messages.

Thanks, rich2005, I couldn't find that to save my life!