i wish to make dimension that meter and feet measurments in one dimstyleExample:- 1000mm (1 meter) and 3.28084 feet in one dimstyle up and down

In regular AutoCAD one would use the "Alternate Units" feature found in their Dimension Style.

can u help me,, how to do it command by command?

DimStyle > Modify > Alternate Units tab.Checkoff the box for "Display Alternate Units".Make your selections.  Click the OK button when you are done.Exit the DimStyle dialog box.Am I correct in assuming that you will have the metric dimensions appear above the dimension line and the imperial units appear below?

thank u very much, i ve got,,,