Use secondary IP as an addon domain dedicated. Possible?


Newbie question.
We already use primary IP address as an IP for primary domain and addon domains.
What about secondary IP?
Could it also be used as a dedicated IP for an addon domain?

It turns out that my questions is basically irrelevant.
Managing IPs on VPS without installing new cpanels is not possible. The cost in memory resources is much higher than spending a 1$ a month for an additional IP.
Therefore, even if possible, I guess it would be useless.