Maybe change the default to F2 ?

Needs to extend functionality of fileoperations.py in Core plugin.

class CopyFiles(FileTreeOperation)
class MoveFiles(FileTreeOperation)

https://fman.io/docs/sharing-plugins

and add the topics fman and plugin

Just FYI I've made a few edits to the format of the toolbar in a fork. If you like them, would be happy to send a PR
(for some reason selection stopped working even with a clean install of your plugin, so can't provide a screenshot of the new format)

Below is a brief description of the changes

• Shorter size indicators with lower-case for (kilo)bytes: b, k, M, G, T. Kibibyte (2^10) format is preserved
• Change status icon of hidden files toggle to ◻white (hidden files shown) and ◼black (hidden files hidden) Unicode square symbols
• Align all indicator position to keep it the same regardless of the length of the indicator (file/folder count is consistent up to 9,999)
• Remove empty folder/file numbers indicators (including labels) Toolbar only screenshot with a custom theme v0.1.1f
• Add thousands separator (,) to file/folder numbers (e.g. Files: 1,000)
• Change status of selected items to be consistent with the regular view for faster read

DirectoryPaneListener 'StatusBarExtended' raised error.

Traceback (most recent call last):
File "\StatusBarExtended\statusbarextended_init_.py", line 79, in on_path_changed
ShowStatusBarExtended.refresh(self)
File "\StatusBarExtended\statusbarextended_init_.py", line 42, in refresh
dir_filesize += stat(f).st_size
PermissionError: [WinError 5] Access is denied: 'F:\/hiberfil.sys'

Possible solution: Implement a try/catch block to ignore the file if access is denied

The Status bar only shows

Pane: Left (square) Size: 0.0 b

I'm on Win7

Any way I can help to debug this?

StatusBarExtended currently computes fileinfo for both panes, even if you only change working directory on one of the panes. This can be particularly annoying if viewing a large directory in one pane while using the other for smaller directories, because the large directory will compute size on every directory change and ultimately slow down fman.

When having a file with a squigly bracket in the filename "{" or "}", an error is raised:

DirectoryPaneListener 'StatusBarExtended' raised error.

Traceback (most recent call last):
  File "fman\impl\plugins\plugin.py", line 311, in _notify_listener_in_thread
  File "C:\Users\ahayun\AppData\Roaming\fman\Plugins\Third-party\StatusBarExtended\statusbarextended\__init__.py", line 144, in on_path_changed
    StatusBarExtended.refresh(self)
  File "C:\Users\ahayun\AppData\Roaming\fman\Plugins\Third-party\StatusBarExtended\statusbarextended\__init__.py", line 33, in refresh
    dir_files_in_dir      = glob.glob(current_dir + "/*")
  File "glob.py", line 20, in glob
  File "glob.py", line 71, in _iglob
  File "glob.py", line 72, in _iglob
  File "glob.py", line 83, in _glob1
  File "fnmatch.py", line 52, in filter
  File "fnmatch.py", line 46, in _compile_pattern
  File "C:\Users\Michael\AppData\Local\Programs\Python\Python36-32\lib\re.py", line 233, in compile
  File "C:\Users\Michael\AppData\Local\Programs\Python\Python36-32\lib\re.py", line 301, in _compile
  File "C:\Users\Michael\AppData\Local\Programs\Python\Python36-32\lib\sre_compile.py", line 562, in compile
  File "C:\Users\Michael\AppData\Local\Programs\Python\Python36-32\lib\sre_parse.py", line 855, in parse
  File "C:\Users\Michael\AppData\Local\Programs\Python\Python36-32\lib\sre_parse.py", line 416, in _parse_sub
  File "C:\Users\Michael\AppData\Local\Programs\Python\Python36-32\lib\sre_parse.py", line 765, in _parse
  File "C:\Users\Michael\AppData\Local\Programs\Python\Python36-32\lib\sre_parse.py", line 416, in _parse_sub
  File "C:\Users\Michael\AppData\Local\Programs\Python\Python36-32\lib\sre_parse.py", line 553, in _parse
sre_constants.error: bad character range 2-0 at position 20

StatusBarExtended refreshes only upon on_path_changed(). Should refresh when changing pane with TAB button

Make the status bar responsive (if possible, str.format() and str.rjust() doesn't apply)

If you quit fman while the left pane is showing drives (Alt+F1), you will get the following error next time you open fman:

DirectoryPaneListener 'StatusBarExtended' raised error.

Traceback (most recent call last):
  File "...\statusbarextended\__init__.py", line 88, in on_path_changed
    StatusBarExtended.refresh(self)
  File "...\statusbarextended\__init__.py", line 21, in refresh
    pane2 = panes[1].id
IndexError: list index out of range

It doesn't happen when showing drives on the right pane.

When trying to resize the fman window size I'm only able to make it wider but not smaller then the bars default size. And if I disable the plugin and resize the window and then enable the plugin again it resizes the whole window again to the bars default size.

I have uploaded a youtube example window showing this error
https://youtu.be/Dxa1CC3koWc

This plugin doesn't show anything when you toggle. You have to toggle, move directories and then it starts to show. I would rather it display something when turned on.