Without sufficient PHP knowledge, you will not be able to achieve any of this, but here is all you need to know to get you going.
First, create a new directory in phpBB, name it 'admin' or whatever you wish.
Create a new index.php file, you can duplicate the /adm/index.php file here if you wish, which is the easiest method.
Change the line:
All your module files will need to be placed in: /includes/sacp/
info files will need to go into: /includes/sacp/info/
Template files will need to go into: /admin/style/
Modules can be added using UMIL
. Managing these modules will require an edit in the /includes/acp/acp_modules.php file.
Language files can be automatically included or called upon directly. To automatically include language files, use /language/fr/mods/info_sacp_whatever.php
That’s it. If you cannot determine what to do from there, you likely do not have enough programming knowledge to achieve your goal here.