Currently if you have any column that's center is not on the grid but is still touching the grid, the Column Location Mark does not show that it is off centered.
In the picture below this column should read E21 (0'-7 3/4")-EE, however since the edge is touching GL E21 it will not show that it's off at all.

It would be extremely beneficial to reduce human errors in needing to create Dimension plans for the sole purpose of locating columns vs if the Column Location Mark would report the correct location.
With this, the location mark should likely be based off the of the Project Units for tolerances, i.e. 1/8", 1/4", and so on.