Admin.yaml Question: is import or include yaml possible

Hi all,

I have a system made out of clusters of grav homes.
with shared /user/plugins (ln -s aliased) from the
to accomplish uniform administrations.

I have a scenario which each individual cluster needing specific add_modal tweak.
though plugins/admin/admin.yaml is shared by all clusters, I’d like to add specific add_modals.

I have tried to include a original.yaml (to enable small differences for each clusters) for admin.yaml to include/import.
Any Idea how I can accomplish keeping the uniformity of having single admin.yaml pointing to the original and creating add_modals for each clusters.

any ideas are welcome.
P.S or should I stick to having independent plugins directory for each cluster?

Thanks !