This is an addon for Pterodactyl Panel
One click server version changer (like minecraft). You can use your own jars, or just download it from a website. It support .zip (like forge) files, or use eggs as versions.
1. Upload the files (only app , database and resources folder) to /var/www/pterodactyl and overwrite the folders.
2. Follow the instructions in:
If you have any problem, do not hesitate to contact me!