SLP - force active outside window?

Now that we have SLP windows, is there a way to force the next step if the window is not open?

If I have a SLP process:

1. backup to disk

2. duplicate to tape with SLP window starting at noon

If all my processes complete early, or I want to start this SLP at 10:00, is there a way to start it early?

I would prefer NOT to totally change the SLP window and force update the version as a solution, should I add this as an idea?