Symptoms
Looking at the following documentation, it appears as if we can set a conditional start rule when a item is added and edited in a SharePoint library or list. (This happens on other "events" as well.)
Herewith the URL to the documentation.
http://help.k2.com/onlinehelp/K2ForSharePoint/UserGuide/4.6.11/default.htm_Build/Workflows/Workflow_Start_Options.htm?TocPath=Create|Workflow|_____3
According to the blackpearl 4.6.11 documentation, you are able to set a conditional start rule, but this is not the case with blackpearl 4.6.11.
Diagnoses
This feature is currently available in Appit 1.3, and is slated to be included in blackpearl 4.7.
Resolution
Seeing as this feature is only slated for blackpearl 4.7, we logged an item for the documentation team to remove the erroneous parts from the blackpearl 4.6.11 documentation as to eliminate possible confusion.