Datum observations can be added directly from *.project.txt files generated by 'g' software (Micro-g Lacoste, Inc.) using the menu option Adjustment > Import abs. g from database, which brings up the following dialog:
First, navigate to the directory with *.project.txt files. The Load button scans the chosen directory and subdirectories. Metadata for each observation is shown in the table. Check the observations to import and select the Import button.