All the changes and effects you can apply under the develop module, can be saved as a preset.
The black and white points will be different for every single image though so how do I apply separate and different settings for each image?
The [Auto Tone] button in the Quick Develop panel is as close as you will get to an auto setting of black and white points.
But many find it also changes exposure requiring more slider adjustments.
You will get better results if you hold down the [ALT] key as you move the blacks and whites sliders, or press 'J' to set the clipping indicators on in the Develop mode histogram. (Blacks show Blue, Whites show Red )
Re: Auto Blacks and Whites-
Hold down the [SHIFT] key and double click on the slider (or the word) for Blacks or Whites.
[SHIFT+Double-click] Sets AUTO.