Some datasource
entries do not come with Geographic Calculator by default. The Geographic
Calculator includes a number of datum transformation definitions that
require supplementary data files to function properly. These objects
are not able to be used until the supplementary files are added. Many
of these entries are available by download. Entries that are marked as
red, with a exclamation point, are ones that do not have the necessary
shift files downloaded locally. Right click on the entry and select Download Missing Files to add the
object to the local datasource.
To download missing files for multiple datasource objects, hold down the
Shift or Ctrl buttons to select multiple entries and then right click
and select Download Missing Files.
A download progress bar will appear while the shift files are being downloaded and installed.
Once the files have been downloaded you will be able to select that datasource entry
.