Adding Multiple Cydia Sources via iFile (or similar)
I'm new to these forums (and less than skilled at writing posts), but I noticed everyone seemed to lack the knowledge as to how to manually add multiple Cydia repos at once manually using iFile (or another file browser with a text editor). So I'm going to take you through these steps and it is fairly easy, it just took me awhile to figure out the process.
NOTE: This was done on an iPod Touch 4G, so I can't say for sure if it will work on any device, but the file structure should most likely be intact.
1) The obvious step of having your jailbroken iDevice with iFile installed.
2) Now what you want to do is browse to the directory: "/etc/apt/sources.list.d/"
3) Once in the directory, you're going to create a new file. The only condition I'm aware of is it has to have the file extension ".list." Mine is named "custom.list" for example.
4) Once this is done, open up the file with a text editor and there is a simple syntax to follow to make the sources valid:
deb (the FULL repo address here)/ ./
You can only put one per line and unlike sources added from within Cydia, these must be manually removed via iFile.
Hopefully this helps others as much as it helped me.