Autosys v2 jobstreams show check box for "Allow new run based on force started job".
According to Engineering, the code shows that this features is only for Autosys V1 schedulers.
Testing of Force Starting jobs within a jobstream run produce the same behavior with and without the check box checked.
With a v2 scheduler a new jobstream run is created whether or not the box is checked.
Release : 6.4.2-1
Component : AUTOMIC AUTOMATION INTELLIGENCE INTEGRATION FOR AUTOSYS
Autosys v2 schedulers currently does not support the "Allow new run based on forced started job" option, behavior is the same with or without this option checked.
Defect DE532832 resolved in 6.4.3 release.