So yeah, I'm gonna purchase a VPS on Digital Ocean for my MCPE server. But how to install it? I've never used Linux or Ubuntu before. I saw on YouTube, there's only commands board on Ubuntu VPS. Does it have files or windows to work with? For example: Add plugs, maps, edit properties, etc. I hope masters can help me, thanks
DigitalOcean have amazing documentation, and now's the time to start reading it! https://www.digitalocean.com/community/tutorials/initial-server-setup-with-ubuntu-16-04. It is worth the effort learning to use the terminal - you can add a desktop environment but if you want to keep a maximum of resources available for your server, don't bother. By the time you have set up your system and secured it correctly... installing PocketMine will be easy ;-)