When creating new Ruleset Designer there is an option to
execute rules in parallel as given in the following screenshot.
However, as soon as you add / assign Rules under this
ruleset, it disappears.
Note that this option is only available when the ruleset is
selected and not the individual rule. So, you need to select / click on the
ruleset to get this feature.
I believe this to be as a bug however there are at least two
ways to get this option back.
- Save and close the ruleset and reopen.
- Another option is go to another tab in workspace and come back to this ruleset and you will see the option visible / enabled.