**Feature Request** #Brief title for your desired feature: *when add a wire at the PCB Layout,the PCB will become new one,if i click "undo",it still a new file, for our opinion,the PCB doesn't change, we don't need to save.both PCB & chematic. #How would you like the feature to work? *reducing save times & unnecessary old version #Why is this feature important to you? *maybe many users are used to make a save frequently, that will increase waste of server source.....increase save times ```ps,my schematic has more than 51 history version now,only two weeks,and a lot of version i don't need them~~~ ``` Don't know if you can do it.