I am not 100% sure what you mean with tickets but from what I understand I think you mean the tags feature.
This is still available.
Though by default baloo the search indexer is disabled (as it can eatup a lot cpu and should be an optional feature in our opinion).
You can enable it by going to systemsettings -> Plasma Services and enable the switch for baloo.
This should give you more search options in the dolphin filemanagers left sidebar already (after dolphin restart of course).
Now if you want to use tags in the right sidebar you need to right click it and hit configure to enable Tags there.
This will allow you to see the Tags value for every folder and file and you should be able to edit this aswell.
Finally you can get an overview of all tagged files when entering the tags:/ address.
Hope that helps and that is the actual thing you were missing.
This is still available.
Though by default baloo the search indexer is disabled (as it can eatup a lot cpu and should be an optional feature in our opinion).
You can enable it by going to systemsettings -> Plasma Services and enable the switch for baloo.
This should give you more search options in the dolphin filemanagers left sidebar already (after dolphin restart of course).
Now if you want to use tags in the right sidebar you need to right click it and hit configure to enable Tags there.
This will allow you to see the Tags value for every folder and file and you should be able to edit this aswell.
Finally you can get an overview of all tagged files when entering the tags:/ address.
Hope that helps and that is the actual thing you were missing.