when you are trying to add the smiley...I can't unclick the "Use Existing File " so that I can add my own.
see below...

Here you can add a new smiley - either from an existing file or by uploading new ones.
Smiley Sets
Add Smiley Edit Smileys Set smiley order Settings
Image Source:
Use Existing File (using smiley set: Default /Classic /Emoticons)
Don't want to use existing fileAdd new smiley (This is what I want to do.Using my own code etc. from my emoticons if I can.)Code:
Tooltip or description:
Location: Post form /Hidden /Popup
On which step?