Several ip addresses on one interface to increase the number of active outgoing connections, will it work by itself?

Question

Windows

There is a system: Windows Server 2012 R2
It is necessary to be able to call a large number of outgoing connections. If you make several ip aliases on the same interface with the SkipAsSource=False flag, will they be used, or should there be some action from the applications?

Answer 1

there must be some action from the applications.

Answer 2

will they be used, or should there be some action on the part of the applications?

If you use them, they will be used, otherwise not.
What are the applications here?