Macro running from Macro

Sir,

If we see the Structure of Advanced CAD Import it is as below

Advanced CAD Import (Macro Name)
Wizard
+Advanced CAD Import
+Block Mapping Wizard

With the sample given the macro runs if there is a Single module in the macro. For e.g.

Multi Copy(Macro Name)
Wizard
+Multi Copy

My observation is that when there are multiple modules the program gives error.
How to write a program if there are Multiple modules in the macro and need to call a specific module from the module?