Hi, i’m new to kicad, previusly was on EasyEDA.
I’m trying to manage the sheets with hierarchical sheets but when i copy or add a component to one sheet it gets cloned to all sheets, same thing if i delete it, it get deleted from all sheets.
Did you change the reference designators in each sheet to be unique in the project? See the docs here: Schematic Editor | 7.0 | English | Documentation | KiCad and there should be demo projects you can look at from Open Demo Project.
It’s not a bug, it’s a feature.
The intention of using multiple instances of the same sheet is to duplicate a part of a circuit multiple times. For example a BLDC motor controller, which has three output stages that are all the same.
This also works in combination with the Replicate Layout plugin to replicate the layout on the PCB.