Explorer Plugin: Results after 'Tab'-ing into a folder

**Is your feature request related to a problem? Please describe.**

After listing a folder with explorer plugin, I often wish to further browse into the folder, hence I hit 'Tab'.
I'm then presented with the following entry-lines:
- "Open in default file manager. Use '>' to search in [...]"
- [Folder Contents]
- [Folder Contents]
- [...]

When I provide further input, the folder contents are being filtered.
However, the "Open in default file manager [...]"-line remains.
This forces me to use arrow down in any case to select my target object.

But: If my target was to open the current folder, I would have hit enter already at the beginning. After I start to type further input, I don't need the first line anymore, because I'm targeting another folder or file.

**Describe the solution you'd like**
After browsing into a folder, only display the "Open in default file manager [...]"-line as long as there is no additional text input.
As soon es there is, hide the "Open in default file manager [...]"-line.

This allows to "Tab" into a folder, text-input to filter the results towards a target, "Tab" again into folder, etc. (or eventually hit "Enter" or "Ctrl+Enter" (depending on your settings) on the target object).