I installed a fresh Sitecore 7.0 instance on my local. I created an Item bucket. I thought of creating folder structure on the basis on name like pages starting with alphabet should go in a folder named A as the page names are not supposed to change. I found many articles where I found that there are 3 default rules: CreateDateBasedPath, CreateIDBasedPath and CreateItemNameBasedPath. I have following two questions:-
Sitecore 7 does not allow using the Rules Engine for bucket folders. That was new in Sitecore 8.
To change the bucket path you will need to implement a custom BucketFolderPathResolver
. There is a good post on how to do that here: http://www.brimit.com/blog/custom-bucket-structure