08-19-2019, 10:04 AM
Trying to automate things a little bit 
Two scripts sg-group-linked-layers.scm and sg-combine-bg.scm to assist. Unzip the attached and put them in
C:\Users\"yourname"\AppData\Roaming\GIMP\2.10\scripts The image owl.xcf.gz goes in some convenient folder.
Then it is as this video
https://youtu.be/hpCETmjLgEM Duration 2 and a half minutes
Exporting as an optimised gif - look at the previous video

Two scripts sg-group-linked-layers.scm and sg-combine-bg.scm to assist. Unzip the attached and put them in
C:\Users\"yourname"\AppData\Roaming\GIMP\2.10\scripts The image owl.xcf.gz goes in some convenient folder.
Then it is as this video
https://youtu.be/hpCETmjLgEM Duration 2 and a half minutes
Exporting as an optimised gif - look at the previous video