I am new at SharePoint, but I have learned that is possible to customize any List Page Form through SharePoint Designer.
However, i noticed that if i have 50 List's Definition in my site i will need to change each AllItems List View Page just to keep them equals, and i know that i wont enjoy this!
What i want to do can not be done with Master Pages.
I realized that there are two files located in the main SharePoint Site, called main.xsl and fldtypes.xsl. Inside one of these files there are the default template for List, Edit, View, Create Forms.
Can i change these files or is better to create my own custom template file and put all my templates there?