Open Timeline not immediately obvious

Hi

Could you please add a label somewhere so it is possible to know which Timeline is open. I duplicated a Timeline and opened it. At first it looked like nothing was happening. It wasn't until I moved the playhead and toggled between opening each Timeline that it became apparent which was open. I know you can now open multiple timelines but when you have only one open, it's not immediately obvious which one it is.

Thanks
George

Update: I discovered you can tell which Timeline is open by the title over the Canvas/Program panel, however, this is very small and not immediately obvious. So a title over the main Timeline panel would be useful.

You can turn on Stacked Timelines even if only one is open.

Thanks!