How can I use a hook in a nav tab's title?

[kh99]

I think you could use a plugin on hook build_navigation_array, and at that point there's an array called $result with the info for each tab. If you have your tab "Identity" value, you can change $result[$identity]['text'] to whatever text you want.

Edit: That plugin will also be called when you go to the Navigation Manager in the adminCP, so make sure you don't do anything that won't work there. You might want to check VB_AREA == 'AdminCP' and not do anything if that's true.