What's the quickest way to tag many contacts at once?
The quickest way to tag a number of contacts at once is by doing so in the People tab:
1. Pull up the contacts you'd like to tag, using the advanced search filters.
2. Select the people you'd like to tag (either by checking the boxes next to the individuals, or by selecting all using the drop-down above the list).
3. Next, from the drop-down that says Apply to x people, select Add Tag.
4. A pop-up window will appear where you can enter the name of the tag (including tags that already exist in your database).