when I try to make some exercise, during it , I can't know how to setting the unit all the time. whether it is because it is same input as FEA software?

thanks

If the units are not shown on the input forms, use [F1] to pull up the "help text".

dear Richard
sorry , my note is not right.
what I asked should be when I firstly enter the structural model, there has a mask which is material specification, in it I can input Density , Yield Strength and Young 's module ....
whether I select ENGLISH unit or SI unit, the fault value alway s same in material specification .

whether there has a definite expression in Caesarii.

thanks

The structural input file is a flat text file with no intelligence. So once the file is created, you can't change the units as you can with a piping model.

If you start a structural model in English units, the default material properties are in English units. If you start a structural model in SI units, then the default material properties are in SI units.