Hi again! Aternos team!
Can you please add "Sit" mod?
Link: https://minecraft.curseforge.com/projects/sit
"Sit makes it possible to use slabs and stairs like chairs. Simply rightclick a right side up slab or stair block with an empty hand to sit on it. To exit, press the key you use to exit a minecart (by default SHIFT). Usually slabs/stairs from other mods are supported, however if any do not work, please contact me.
This mod works on singleplayer as well as multiplayer, but needs to be installed on both sides if it's used on a server. "
Thank you very much as always. See you soon.