P:(Masking)Add controls to modify mask to expand, contract, or feather in AI Selections

When I want to soften a bokeh, I can create mask by clicking the "Select Subject" button, invert it and decrease Sharpeness.

But the problem occurs at the edges of subject, the edges of subject are blurred too. The only way is to create another brush mask, paint around the subject and subtract it from original mask.

1. It would be nice if there was a feather control in "Select Subject" that would extend the mask.

2. It would be great if there were an option to automatically recalculate AI mask after synchronization or if mask was copied to a new photo or when applying preset with AI mask.

With this features softening the bokeh could be saved as a preset and it would be very easy to apply it.