Jupyter Shortcut not working

Question

I am working my code on Jupyter(Python). Normally, the shortcut to insert cell below is \'b\' and for above is \'a\', but when I do that search bar opens instead of insertion of

Answer 1

Not quite on topic of the question text but I got here from the title of the question. If you're on MacOS I noticed that the frequently used run-cells shortcut recently (I'm using notebook v6.1.1) changed from the original (Ctrl+Enter) to ⌘+Enter. You can check/change the current keyboard mappings from the Help menu in Jupyter. And the keyboard mappings are shown for a (and b) under the Insert menu.