tag navigator suggestion
I found that it would be very convenient and practical to have a list of all tags as a togged panel. I think, it should be multiple options: 1) tags for the current file with possibility jump to the tag by "double click" or "press_enter" event, 2) all possible tags based on included headers. I would probably some possibility to control what should be shown, e.g. macrosses. The relevant examples may be found among vim's plugins, such as tagbar, taglist. Anjuta has a symbol navigator probably for all files in the project, including all headers. Looks like but I am not sure. However, it doesn't have the same list for the current open/active buffer.