Stop Signal Task - delay

Hello, for the stop signal task on block 2 is it possible to present the stop stimulus (red circle) at varied times depending on the participants performance? In other words, the timing of the stimulus would decreased after a previous failure to inhibit and increased after a previous inhibition (resulting in SSD staircases across the course of the task). The purpose would be to track that participants inhibit on approximately half of all trials and controls for difficulty level across participants. I can't figure out if this is possible on psytoolkit.

Thank you!