It simply drops down from the header over the rest of the page. But Retool has got me handcuffed in a big way as I found it impossible to allow any component to "overlay" anything else. Instead, even with complex show/hide logic, Retool seems to be using javascript to calculate dimensions, and it forces other elements to move around...
This is so tragic, I hope I am missing something. The utility of overlays such as menus and popovers is pretty high. Help is greatly appreciated!
Unfortunately you're bot missing anything, such "overlay" functionality is not available with retool and there are several posts in this forum (modals, drawers, split panes) which are not really the same as this classic search bar
@MiguelOrtiz is correct, the closest option would be to have a modal pop up on the screen above the current components. This modal could have a search bar component at the top and based on the data that populates have additional components appear on the modal.
The other option would be the drawer for an overlay but these currently always extend from the right side of the page. I could make a feature request to see if we could have the drawer open from the top, but likely a similar setup could be done with a search modal.