v2.251.0 on Windows 10

If D:\test contains the files below:
D:\test\1.txt
D:\test\a\1.txt
D:\test\a\aa\1.txt
D:\test\b\1.txt

Now input
'D:\test\*.txt' only find first file.
'D:\test\*\ .txt find all files except first file.

Can I find files in the directory and all its subdirectory without pre adding path to the option 'Search folders' ?

On Windows 10 command line
-show will show the search window
-hide will hide the search window
-toggle will show the search window, -toggle again still show the window rather than hide the window.

Can I hide the window with -toggle ?