shell command use auto cad

auto cad me shell command ka use kaise karete hai iske bare me batate hai
shell command ke liye hum modify per click karte hai phir solid editing me arrow le jaker shell per click karte hai
1 select boddy type r enter

2  face per click krenge enter press karenge ( enter the shell offset distance) ane per jitni thickness chahiye utna hame type karna hai 1mm karenge press enter