[Neovim] Change NERDTree root when selecting bookmark

Hello,

### Question

I would like to know if there is a way to change NERDTree's root path when selecting a bookmark and/or opening a file ?

### System information

#### Editor
Neovim 0.4.4

#### Revelant settings
```
let g:startify_change_cmd = 'cd'
let g:startify_change_to_dir = 1
let g:startify_change_to_vcs_root = 1
let g:NERDTreeChDirMode = 2
```

Thank you bery much in advance for any help.

Review the reported Neovim 0.4.4 setup and the listed startify and NERDTree settings first. Determine whether selecting a bookmark or opening a file can change NERDTree's root; completion would require a confirmed answer or a clearly scoped change request.

Written by the indexing model from the issue text.