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8.2.7 cscope and Editor Call Stacks
cscope and editor calls can be stacked. That is, when cscope puts you in the editor to view a reference to a symbol and there is another reference of interest, you can invoke cscope again from within the editor to view the second reference without exiting the current invocation of either cscope or the editor. You can then back up by exiting the most recent invocation with the appropriate cscope and editor commands.