I have an flowaction to be restricted for some scenario . updated security tab and restricted it for some users.
But i am able to see 1st case wide local action related section 
is there any way to restrict load of those for few scenarios.
Restrict load of Case wide actions
- Edited
KRK
We can conditionally restrict a flow action at run time in different ways.
1) Using privileges in the flow action rule - Users who have the mentioned privilege will only be seeing this action at run time.
2) Using custom when rules in the flow action rule - User will be seeing this action only when the mentioned rules evaluates to true.
3) In case of defining the action as a case wide local action, we can configure when rules explicitly to restrict the access.
We tried all 3 approaches and everything works as expected. Please go through the options provided above and let us know if you still face any issues.