Plan work operations

Is there a way to schedule operations when they should start or end?

For example:

First operation (start immediately)
Second operation (start after 1st operation)
Third operation (start in parallel with the 2nd operation)
Fourth operation (start after completion of all operations)

Case study: 
Modules are being produced. The process looks as follows: 
1st operation: Cut tubes
2nd work step: Clean tubes
3rd operation: Cut cables
4th operation: laying cables and pipes

Operations 2 and 3 should be run in parallel.

Theoretically, operations 2 and 3 could be created as subassemblies. However, in the case of complicated production orders, it quickly becomes confusing and nested, because there can be a large number of open production orders. 

Does anyone know how this process can be mapped more simply?