You can open the individual task entry in Admin / Client tasks, by the little "+" expand button, and then toggle a context menu for individual entry. You can remove individual triggers, or eventually even edit targets. Screenshot attached.
In the next version (7.0) we will be adding possibility to save a filter set, for a various conditions (un-managed computers, computers without security product installed, computers with a specific security product version ...). You will then get the filtered view on top of all computers by few clicks. However, you won´t be able to automate like you do for Dynamic Groups. However, for the future, we are working on more in-depth server side automation, where defined conditions will result in "tagging" a computer, and automation framework will check "assigned tags" and trigger actions based on them. This won´t be done to 7.0, as the feature is a bit complex, but it´s being worked on. Filter sets are below, on the screenshot.