Tom,
sorry for not being so clear earlier. I wish to populate the SpecE8 basis using tcl inside the script and script end commands. To be more exact, I am modifying the example Script.E8 file for multiple analysis according to my needs and I'd like to be able to fix CO2 to 1 atm during calculations and wasn't sure how to do it using tcl. I hope it is clear now.
Thanks,
Azra