Ok, I found it.
I made a blood sacrifice to the OB gods yesterday and they led me to an acceptable (initial) implementation of a chasing inspector:)
The code is in OB-Tools-dkh.66 (make sure you've loaded OmniBrowser- dr.442 as well). It'll need a couple more sacrifices to the OB gods before it's really ready (primarily reducing the text pane screen real estate), but you can take it for a spin, if you're interested:
OTChasingInspector openOn: { #key->('Smalltalk'->Smalltalk). Dictionary with: #blue->'1' with: #green->'2' }.
I'll be using it in GLASS, but if there's interest in a Pharo/Squeak version I'll make sure to keep it up to snuff.
Having tooltip for the *, 1, # buttons will definitely help. Alternatively, the title of the window may reflect what is currently displayed. It looks very good Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.