Experiment Tag Search
Experiment Tag Search is accessible from the main toolbar:
Search → Experiment Tags ...
This search retrieves all experiments containing one ore multiple of your predefined tags. Just select the individual tags(s) you are looking for, and the experiment results list updates accordingly. Note that an experiment must contain all of the selected tags to be listed in the results. And unlike the other search types, tag‑based searches also return unfinalized experiments.

Click any experiment in the result list to open it in the protocol area. The number to the right of the tag name indicate the number of experiments currently referencing it.