Help, some questions of the development version

1:Filtering this area to see if it can be adjusted to hide, it takes up too much space when not in use.

2:There is no option to adjust the distance between items, and it is a little too wide.

Is there an effective workaround? Thank you!

For a specific doctype, Inject CSS through a client script (you need to target listview).

To make this frappe-wide you will need a custom app to hook in your custom css.

Okay, so it looks like some testing needs to be done. Thank you!