When creating a new folder is it possible to have currently selected file/folder name as the new name please.
Change the command to
CreateFolder NAME="{file}" ASK
Am using your recommended Create Folder button
CreateFolder NAME="{file}" ASK
and it is appending a (2) like so
Is there a way I can just have the selected filename(no extension) or folder without the (2)
No there's not, the command will always check if the default name exists already and append a number if so.
This might do what you want:
CreateFolder NAME="{dlgstring|Enter folder name|{file}}"
You'll still need to edit the name in some way, since you can't create a folder with the same name as a file, but it won't be edited when it appears in the prompt.
You will lose the ability to make multiple folders, so I would not use this to replace the standard New Folder button/hotkey.