NEED : filter displayed categories & sections (in column '"categories") 

EXISTING SOLUTION : Filter tickets via TAG

PROBLEM : Add some tags on all tickets of each section or categories dupplicate a lot all required actions

                     Serals thousands of categories = Same numbers of rules (not realist)

Add an icon "👁" on the title of column "Categories"

On click on precited icon, display a little frame with options :

   [ALL | Current Section / Categories ]

On click on All, display all sections & categories

On click on Current Section, display only the (already) selected Section and their categories

On click on Categories, display only the (already) selected Category

Each precited link should be linked to a URL query

Example : 

&CCFilter=all

&CCFilter=thiscategory

&CCFilter=thissection

This to be able to use it on External Web site as Entry point