This is what I would recommend:
ids of taken actions of custom bes fixlets whose(id of it = 1)
Note: “bes fixlets” will return all Fixlets, Tasks, Analyses, Baselines, etc… Internally, everything is a Fixlet but of different types. “custom bes fixlets” returns only the results of “bes fixlets” not contained within an external (IBM Provided typically) site. “custom bes fixlets” is faster and better to use than “bes fixlets” if you are only interested in custom/internal baselines.