SP-INSTALLATION
1. Open OpenIV and activate Edit Mode
2. Go in
GTAV/mods/update/x64/dlcpacks
3. Drag the sscustom folder into here
4. Go in
GTAV/mods/update/update.rpf/common/data
5. Open the dlclist.xml file with the Edit option
6. At the end of the file, before , add the string
dlcpacks:\sscustom\
FiveM-INSTALLATION
1. Navigate on your server to the resources folder
2. Drag the sscustom folder into here
3. Open your .cfg file and add the string
start sscustom
Credits:
CM Mods