[horde] Share kronolith / nag / mnemo automaticaly with group

[nobodyknow]

Hi all,

I try to share kronolith / nag / mnemo automaticaly with the whole group. I
think it is related to:
$prefGroups['share'] (in every of the three applications)

I already wrote a hook which add a user by using 'sign up' automaticaly to a
group. But I can't find an easy way to share these applications.

Do you've an idea?

Martin