If want to add new tags or search for an existing tag follow the below steps:
Visit the Mobiconnect URL https://www.mobiconnect.net/ , Login with Owner/Admin account and select the Project.
Navigate to Tags module and Click on the search bar to search for the existing tags or create new.
If you want to create a new tag then click on the "New" icon on the right side of the web page
Note: You can find the tags with the help of tag name and can check the date the tag was created. You can also have quick access to the tags.