how to check sequence of parts in a macro

If we go to VBA coding and press F8, then it starts from the cursor point and not from the initial step. i.e. we have 3 modules in a macro and in all 3 modules we have multiple parts and the first step is defined in 3 module and part 4 (just for example) and in this case if we got to VBA coding and press F8 and we are on the top row of first module it will start from there only and not from the original first step.
hope I explained it