Timed custom positions vs computer?

I'd like to set up a custom position to play against the computer, but I can't find a way to make it timed. Is there a way I can set up a custom position and then play it out against Stockfish with, for example, a 5 l 5 time control?

You can play custom positions against the computer by setting up a position with the Analysis Board and Finish vs Computer but in that feature, you can't set the computer level or any of the settings.

In the vs Computer option, you can use the Options link to change the level and the time control but not set the position.

I have submitted a suggestion to link those options more closely, so that you can either set the custom position from the first option or change the options through the second.

Thanks for the help! 

Was this ever implemented as an option? I am struggling to find where I can do this.

You can now change the bot after starting the position against a bot now.