hello bill, so, i'e just started learning Blender and i was wondering if there is some shortcut like 'command ?'  i tried it but it doesn't work...  i'm reading a linkedin tutorial but it's probably for a slightly older version, and it seems like they already changed the name or place for the 2d editor when you go to the editor type icon...(2.8)  Thanks in advance, you're quite amazing, a blender 2.82 User :)
there is something quite like that. i have it mapped to a regular space bar on another keyboard, but looking into it it seems like it's just F3. however, i can't guarantee that that's the default, i may have switched the key blender uses. To find out, go to preferences, go to 'keymap', and in the search bar type 'search' and you should see something called 'window search', and it should say what key it is, which for me is saying F3 but i can't remember if that's the default setting. Another thing you might find useful, for example, in the node editor windows, whenever you press 'shift A' to add something, that menu has a search thing in it, so in that case it would be 'shift A', 'S' to trigger that, if you happen to be in a node editor window which will allow you to search nodes to add. some of the other sections probably have search tricks hiding in them as well, but as i said the main one is called 'window search' and it's F3 on mine which may or may not be the default but you can find out in the preferences and set it to your own choice