Hello Aternos Team,
can you please add the Mod "Fanny Pack"?
Link to the mod: https://www.curseforge.com/minecraft/mc-mods/fannypack
Basically, it's just the Traveller's Belt from Tinkers', but it's for 1.10.2. It switches between n hotbars, instead of 2, though. You can add additional hotbars to your fanny pack with nether stars