also I couldn’t seem to find a manual do you have a link by chance?
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In the help menu in the IDE there is a link to the manual that comes with the download. The online manual can be found here: RCBasic 4 Manual
I also made a video going over getting started with the 3D editor here: Serenity3D Tutorial
Also, I am not sure why you were not able to access the discord but here is an invite link: https://discord.gg/Egf5hwEP