I would like to make all my structures indestructable for all the players too. In the Advanced tab under structure resistance do I type this?

Struture Resistance Multiplier = 0.0, and if i use GUS setting what heading will i need to use and what command?

Please help! thank you

There's not a way without mods to make structure's indestructible. They'll always take SOME damage from being attacked. You would need to seek out some type of decorative mod that bypasses one of ARK's core mechanics in order to have structures that take 0 damage from all sources. Note: Doing so will make brontos, paracers, and quetzel's pretty much god-tier dinosaurs, as they all 3 have platform saddles, and you basically would be providing them with a way to take 0 damage from all dinos. Which means you could theoritically kill all bosses with 10 paracers.