The PPI Assist feature will let you specify a target resolution and the Camera Focus tool will then calculate how much the iXG camera needs to move relative to the subject to achieve the desired resolution.
This feature requires an iXG camera because it is capable of measuring the distance to the subject. In addition to entering a target resolution, you can also enter the desired magnification, image dimension (Field of View) or distance to the subject.
The PPI Assist feature requires an iXG camera with firmware version 3.06.5 or later installed.
Note that the PPI Assist and AutoColumn features are currently only supported on the Mac version of Capture One CH 12.1