Asynchronous Requester

[fingus]

Asynchronous Requester which will not block the script from beeing executed. Maybe a new eventhandler is required for this (onrequesterchoice or something like that).

[airsoftsoftwair]

This would surely be useful but it's a lot of work to implement because the requester code is different on each platform and there are lots of cases to consider so this doesn't really seem like it was worth the effort.