@dinasset
I'm not a "Gimp developer" and I can not answer for all plug-ins.
There are people who are in charge of ergonomics in Gimp.
I think these people can respond to your requests.
Here are some links:
http://gui.gimp.org/index.php/GIMP_UI_Redesignhttp://gimp-brainstorm.blogspot.ca/http://blog.mmiworks.net/search/label/GIMP****
Regarding the plug-in "Twist"
Some of my modifications is performed.
This is the first step of my changes : This plug-in can be called by a script-fu (this is not the case in the current version).
The second stage of my modifications to be made : I'll try to add a configuration option, probably in the file "gimprc".