How to enlarge root dir?

[CoinCheung]

Now the root dir is /data/coin-ssl/BiSeNet/res, how could I make it to upper level ? In this case, I hope it to be /data/coin-ssl/BiSeNet.

By the way, if there is such shortcut, how could I withdraw it so that I can shrink the root dir as before enlarge it ?

[pynappo]

By default, <BS> will make the root go up a dir and . will set the root to whatever folder the cursor is on.

[CoinCheung]

Hi, <BS> will close opened dir, for example, it is first like this:

Then when I push <BS>, it become this:

The opened dir mesa_shader_cache is closed. Is there a method to keep this not changed?

[CoinCheung]

Also, I would like to change this key mappings. I added:

vim.api.nvim_set_keymap('n', 'gu', 'navigate_up', {})

But it does not work. Do you know how to change this key bindings?