Hey, everything regarding fxmanifest is explained in my tutorial. You need fivem patreon or set your server to 8/10 slots (I’ve seen multiple people mention different values, so not sure which is correct) and it should work.
Yup, you can rename it in XML, but there are two places you should change name, both are named “dlcName” if i remember correctly. One is at the top and second one at the bottom of the file, bottom one should be hashed, you can enter your name and codewalker with hash it automatically on import xml