The short answer: No.
For the mean time, try 2-clicks in library module's quick develop:
2. Reduce exposure by 1/3 stop.
Sorry if this was obvious, but it's all I got (and some people forget that, unlike develop module, quick develop allows relative multi-photo adjustments). I mean there are plugins which combine auto-tone feature with compensatory adjustments (e.g. exposure reduction), but if this is the only problem you've got (or feature you want), those plugins may be too much solution for the problem..
Here are a couple interesting and maybe little known facts:
1. Auto-toning can be done separately for each of the six Basic tone settings by doing a Shift/double-click either on the parameter name or its slider.
2. The Whites and Blacks auto-tone calculations are based on what has been set above them and are designed to produce a small amount of clipping. (Do a general Auto-Tone and then do a Shift/double-click on Whites and Blacks. They don't move. Set Exposure back to zero and repeat the Shift/double-clicks. The values reset. Increase Shadows and Blacks will decrease when Shift/double-clicked, etc.)
I often set Exposure for midtones and then Shift/double-click down the list, finally backing off Whites a little.
thanks Elie i will try this
this is how i currently do it. So it would be perfect if i could apply a constant –1/3 to the process.
obviously its not a huge problem