Thanks for sharing your thoughts Jerry.
Given I'm using RM for the tree investigations for those matches in my autosomal dna project that I wish to investigate, my main use of groups is to overcome the navigation shortcomings of being able to quickly see/switch to pedigrees of associated people, ie those sharing facts with a person.
As such most of my groups are permanent,
Sort of the equivalent of TMG's associates window (but with the ability to name them,) together with focus groups.
FWIW I'm currently naming them xxS/nnn: inits mrca where xx is the chr, S the side, ie P(aternal) or M(aternal), and nnn the start point in millions of the group concerned, the initials of the primary person in the group, and mrca short codes for the identified most recent common ancestor.
Seeing more of the list at a glance also gives me a quick idea of which bits of whose chromosomes aren't yet triangulated.
Not to say that I don't have a few other groups, but they're mostly temporary.
PS Yes you can quickly jump to the groups whose name begins with whatever you start typing in the pull down list, BUT that doesn't work in either the Named Groups list from Groups view, or the Quick Groups window from right click on a person.
Definitely a wish list item on the latter two.