How to run eclipse file on an older version.

[mechiebud]

I have a simulation case file which runs without error in newer version of eclipse but gives error in eclipse 9. It shows a message that the error could be due to invalid keyword. How can I find the keyword for older version of eclipse?

[FANARCO]

The Old keywords doesn't change. if so, install any old version and check the keyword

[mechiebud]

Thank you. Also could you tell how to output data in my summary files only at particular timesteps not at all time steps.