Are there actively managed ETFs with target dates? That way when you are still working you are purchasing shares of the ETF that are investing in a more risky s

Are there actively managed ETFs with target dates? That way when you are still working you are purchasing shares of the ETF that are investing in a more risky strategy. However, by a certain date the ETF shifts to a much more conservative focus, allowing for you to borrow against said ETF without the risk of a margin call. Not an investment professional or even an amateur investor, just an idea I had so wouldn't be surprised if there is an issue in this.