Using Timed Option and a Continue Button

[yk123]

Hi-
I am wondering if I can present instructions that are timed and have a continue button when using MediaLab.

As far as I understand (upon reading the manual and the "Help" files online), when presenting instructions/questions, I can either have a "Continue" button at the bottom of the screen (and then subjects can just click through), or I can set the screen on a timer (i.e. after 30 seconds a new screen will appear).

I was wondering if there is any way I could have both. For example, could I set the experiment such that after 30 seconds the "Continue" button appears on the bottom of the screen. This way, a subject has to stay on a screen for a certain amount of time by virtue of the timer, but, then if he still needs more time, he can wait to click "continue."