[O] Conditionally display breadcrumbs in agenda view

[Pete Ley]

I know there is a way to display parent headlines using the agenda
prefix.

Is there a simple way to do this conditionally for certain subtrees?

Here's my use case. I have an org file machines.org for keeping track of
what I do to various machines I work on/administer (though I use that
term hesitantly and extremely lightly :)). I keep TODO items for each
machine for things like backups and updates. Sometimes I'll have an item
that has subtasks and I don't want to make the parent heading a TODO
item because it will clutter my agenda view. I just want the subtasks to
show, but I'd like to have some reference to the overarching task. 

For example:

* Tmux
** TODO Install
** TODO Set up basic keybindings
** TODO Fine tune config

These showing up on their own could be a little esoteric. What I've been
doing so far is just setting a CATEGORY property under Tmux so I can see
what the top task is, but ideally I'd like to be able to set just this
subtree to show Tmux/Install, etc in the agenda and everything else
display normally. Is this possible?

Thanks in advance
Pete