Can original text be edited in translate interface or elsewhere? When translating strings in the translate interface, I would also like to be able to edit the "original text" (for the default language), and not only fill in the translation strings for other languages.

Indeed, it's no secret you regularly have to modify or improve the text of a website pages. If the website is multilingual, each time you make such a change, you have to do all this foe each piece of text :


recreate the translation set by reloading the involved page/template
in the desired language
find and delete the initial translation set in the translate
interface
refill the new translation set with the same translation as the
original one in the translate interface


It would bee so much easier to be able to edit the original source text of the initial translation set...

Maybe I'm missing this feature somewhere... can anyone help me on this ?
Thanks you so much for your answers.
You can use the String Overrides module to change the original strings.
Here is a quote about it (from the module's project page):

Provides a quick and easy way to replace any text on the site.
Features

Easily replace anything that's passed through t()
Locale support, allowing you to override strings in any language
Ability to import/export *.po files, for easy migration from the Locale module
Note that this is not a replacement to Locale as having thousands of overrides can cause more pain then benefit. Use this only if you need a few easy text changes.