Yes, easy....

... but:
when I save /before templates, all custom and default templates would be saved; only
ONE copy for each template, even those modified... I.e. I save only the last version of everyone, I guess.
When I upgradeXX.php, only DEFAULT ORIGINAL templates are updated, not my customized version.
So, when I write them to /after dir, again I'd have only the lastest version of everyone. Not modified by me would be upgraded to 2.2.4, those customized by me, NOT !
Is it true ? What should be the utility to compare already upgraded templates ?
If it was right, I'm now searching a way to make all the original templates upgraded, then compare all of them with my customized one branch.
Not found till now... unless I use Araxis Merge against vbulletin.style checking one by one all templates modified between 222->223->224 ...
Thanks again, FF.