[Spaceships] Can Spinal Battery be bundles of smaller weapons?

[Pectus Solentis]

What makes me confused is there are no explicit mentions that it is possible or not in Spaceships #7.

I know that weapon batteries use its own systems (Major, Medium, Secondary, Tertiary, ...) but Spinal Battery is an unique case (footnote 1) and there are no mentions that Spinal Battery can be installed as a smaller system or not. it makes me so confused. Could writers not expect this question?

footnote 1 : Spinal Battery consists of 3 systems, Front Hull - Central Core - Rear Hull. Other Larger Systems use up 3 system slots that are in the same hull section, different from Spinal Battery.