Option to automatically end test upon reaching N sample size?

[imweijia]

Just wondering if this can be configured as an option whereby the test can be paused when N sample size of participants is reached?

[pandathletic]

Has there been any progress or discussion on this feature?
I also think that would be very useful.

[robin-phung]

To revive this discussion, what were peoples thoughts on how assignment would work in situations where the threshold N was reached and individual alternatives do not meet the required sample size to reach statistical significance?

Assuming the algorithm chosen has an element of randomness I imagine a solution would be to define threshold N per alternative and have the experiment end once all alternatives reach the specified minimum.