Create Similar Folder Name


I need to create an icon, that will create a new folder in the same directory, which has a similar name to the currently selected folder name;

That is
by selecting folder: \somefoldername
creates this folder: \somefoldername_new

and I don't want the contents of \somefoldername to be copied, just a blank \somefoldername_new folder

I tried messing with commands, but not successful.


CreateFolder "{filepath$|noterm}_new"

Works great, thank you !