Meaning across activity types. AB into an XT or vice-versa.

That works too. One of the big advantages of the profile script in my opinion is that I can use regex. So my one "bot\b" condition will find any user agent with "bot" no need to explicitly look for bingbot, adsbot, googlebot, etc. And the regex doesn't include any false positive matches like "bottom...

This is a good request. As a current work around you can create a profile script to build this audience. Something like this probably gets you ~80% of the way there:if (user.isFirstSession == true) { var br1 = user.browser.match(/bot\b|spider|crawl|wget|slurp|Mediapartners-Google|nutch|BingPreview|...