[pmwiki-users] Navigation to "Sub-Groups"

[Sivakatirswami]

I'm struggling with the absence of a 3rd level in PMwiki's hierarchy.
Put another way: as has oft been asked "Can we have sub-groups"  Ok the
answer is NO.. so I've set up model for project management where
sub-groups are based on file nomenclature, using the "stem" model which
is already used universally in so many contexts (URI for example) and
naive users easily "digest" and understand a structure like this, which
  just looks visually like any domain-realm-site-pages model:

MailLists.MailLists
MailLists-Invitations.MailList-Invitations
MailLists-Maintenance.MailList-Maintenance
MailLists-FAQ.MailLists.FAQ

etc.

This is actually working out quite  will as using wildcard for
"group=MailLists*"  aggregates all
"subgroups" in page list conditionals.

but a problem arises if the user is located at a "sub-level"

e.g.

MailLists-Maintenance.DelegationOptions

I want to have a menu-form select drop down that will allow the user to
navigate "up and across" to other sub-groups.

This works, but only if I am in the "top Mother group" MailLists.MailLists

---------
Go To Related Projects: (:input form:)(:select+ project:)(:option :)Jump
To Page(:pagelist group={$Group}* name={$Group}*
fmt="#selectlistpages":)(:selectend:)(:input end:)
----------

I get a nice drop  down menu to select and go  to:

MailLists.MailLists
MailLists-Invitations.MailList-Invitations
MailLists-Maintenance.MailList-Maintenance
MailLists-FAQ.MailLists.FAQ

But this is dependent on my being on some page in the "Mother" group
"MailLists"

If I am on this "child" (sub-project-group) Home Page:

MailLists-Invitations.MailList-Invitations

I can't figure  out how to declare a conditional that will deliver a
page list for all groups under
"MailList"   Since  the  {$Group} is "MailLists-Invitations"
group={$Group}* will fail to
get me all the "subgroups" under "MailLists*"

In another programming language would just set a delimiter to "-", parse
the first item
which would then return "MailLists*" in all cases.

How do I do that in PMwiki?

stating yet again: if I am here:

MailLists-Invitations.InputCGI

how can I generate, from that page,
  a pagelist of the "home pages" for related projects?

MailLists.MailLists
MailLists-Invitations.MailList-Invitations
MailLists-Maintenance.MailList-Maintenance
MailLists-FAQ.MailLists.FAQ

Our model is such that  there is *always* a home page where Group=Name
which is the PMwiki default. So that's dependable.

I could use:
---------
Go To Related Projects: (:input form:)(:select+ project:)(:option :)Jump
To Page(:pagelist group={$Group}* name={$Group}-*
fmt="#selectlistpages":)(:selectend:)(:input end:)
----------

But this will fail to pick up pages in the top level
"MailLists.MailLists" which has no dash in the group name.


TIA

Sivakatirswami
www.himalayanacademy.com