Is it possible to import my own classes in Page.php for example? I am using methods again and again and I don´t want to write the functions twice.

I tried to create a class "ImageManipulator.php" in my folder. It looked something like that:

+ silverstripe
____+ mysite
______ + code
______...
____+ mycustomsite
______ + code
______ + com
________ + ImageManipulator.php
______ + templates
______ ...

The problem is that ss does not ignore this file, but tries to parse it and fails. But I think there must be a folder which is ignored by silverstripe, so that I can create my own classes in there?

Examples welcome!

By default SS will build a manifest of all the PHP classes - so you don't have to include or require anything. If you want the default SS manifest builder to ignore a directory (say you have some classes you want to keep wayy out of SS) you need to create a blank '_manifest_exclude' file. No file extension, no content, just a file with that filename.

This will tell the manifest builder to ignore that directory.

That´s just great! Thanks a lot!