[DaltonST]

The drop-down for the Current Value's Icon File has all of the icon files for all of the Values currently in the Current Value's drop-down list. That is specifically to be able to easily choose other icons of other Values with the identical Source. Their icon images along with their icon files can easily be viewed simultaneously in the matrix below. What you suggest conflicts with the above, so it won't happen.


Added: Further, in addition to the above method, the ToolTips for the Icon Files in the Matrix tell you exactly where in your personal system that JS is keeping the already-assigned Icon Files. Just click the "Browse" button, and navigate to that directory, which will end in .../calibre/config/plugins/tagbrowser_icons. There, choose from any of your "recently used" Icon Files based on their sorted creation dates. Or, sort by file name which will give you their sorted Sources (custom column name).




DaltonST