Millisecond Forums

Two quick beginner's questions:1. I am working with a task from the library and would like to change the instructions prior to the experiment such that the nextkey (option to press button to continue to next part of experiment) only becomes active after 3000ms and not immediately, to force the subjects to remain on the text page with instructions for a minimum of 3000ms before continuing with the task. How can I change this in the script? I want to use the script for a webexperiment, and I think the instructions have all been realized with the preinstructions/postinstructiosn function, and the nextkey is the same throughout the experiment.The waiting time can also be the same throughout the experiment.
2. I looked for this information in the documentation to find a solution myself but I couldnt find a search function that would allow me to look for "nextkey"  properties etc. and after a while I gave up. Is there a clever way to navigate the help so that I can better find information for specific questions like this one? For example, what would be a quick way to find the solution to question 1 in the documentation?