Selective access for lists from dashboards.
I am trying to enable the user to give selective access on a list via dashboard. I published the list to the dashboard and can clearly see the "Read" and "Write" columns on the dashboards, however if I save the dashboard and close and reopen it , the columns of "Read" and "Write" are not visible. Can somebody explain what is the issue here? Is there any workarounds for the same as one can neither import into those columns nor can one apply formula to them.
Any help would be appreciated.