Title said it all. I want to have dropdown menu with used tags or some cloud of tags from which topic creator can select already used tags for their new topic (default is that you type tags that you want). Main reason I wanna do this is not to have duplicate tags with similar spelling or just different at 1 letter. Any suggestions?
Nevermind for answering me. I made a workaround. I searched in database to find those fields with tag name and draw tags from mysql database. Also used .js to put checkboxed tags into input field for tags while creating new topic. Hope this will help someone with struggle like I had.