Is it possible to change force unit to 'Kg' in CAESAR 7.0
Please guide us.

You can build and use your own units.

Create using the Create Units selection from the Utilities Ribbon.

Activate these units by setting in the configuration file.

Convert older unit files to your new units (Change Model Units) in that Utilities Ribbon.

I did the same sir.
But there is no option to change force unit to Kg.
options available for Lb, kib, N & KN only.

Put your own constant and change the unit name.