Allow multiple deployments in single application image via new S2I via plugin

with changes introduced in EAP7-1734 and EAP7-1735, the main workflow changed and is now allowing to deploy one deployment only (specified within plugin configuration).

That is a bit of lost functionality as with the old S2I we were able to deploy multiple deployments to the same server just by building multi-module project. Then by default all target folders were searched for *.jar, *.war, *.ear archives and all of those were then deployed.

What are our options to mitigate the old functionality?