Issue:
The new SDK UI has removed the button to switch to a different platform. While I get that the intention was that this is no longer needed due to multi platform building, it is in my opinion still needed.
When trying to create different versions for different platforms, e.g. texture overrides, it still makes sense to switch to that platform to see what it looks like. While I know you can still do this using the Build Settings, it's way more annoying to do so.
Suggestion:
Please add back a button to the SDK that allows you to switch platforms, doing so would make development a lot easier.