Ungraded mini-quiz as pop-ups during timeline of base slide

Cause I only want a 'pick-one' type, I used a Layer that pops up at a given time in the Base Layer's timeline and that present two buttons, restyled in line with the template we use. Each button then triggers a change of state in a nearby invisible object that contains the feedback box (color coded for right/wrong answer as it needs) and text to visible (and close the other answer's feedback, so the user can cycle as many times as he/she likes between the two. Finally a small X box that close the layer when the user is done; this also resume the timeline in the Base Layer. So I can basically place as many as these layers (I need only 4-5 in a 4 minutes Base Layer) and it will be sufficient to go through the long slide without wanting to 'commit suicide' (and reinforcing specific bit that they just have learned....memory hooks!). As you said a bit more maintenance than the standard quiz but now that I spent an hour creating it and styling it, they are easy to reuse with just some editing of texts for question, 2 answers boxes and 2 feedback boxes. You gave me the encouragement to go ahead so thanks for the nudge! Thanks

Ta!