I highlighted the variable name and used used cmd-E, cmd-G to search for additional instances. Unfortunately, only nearby (on-screen?) instances were found.

Depending on how much has been loaded, I saw the search wrap after both two and six instances of the string. However, a command-line diff shows 9 instances of the variable in the diff. In addition to the UI noise to get started (search field appearing and disappearing), there is another issue with this particular workflow: if you manage to get the display to scroll, it doesn't highlight the text it scrolled to.

The search itself is better after upgrading to 3.11.4. Activating the search is still too hard. Looking at upgrading to BB4.1.x soon