Multi ROI Masks

[Serapio M. Baca]

John Bradley was very helpful in pointing out the way to take  
multiple ROIs and get the readout of their intensity over time plots,  
so I am hopeful that there is a similarly easy fix for the following  
task:

1. Is it possible to create a mask of every single ROI in a  
collection all at once? We do some pixel-over-time within an ROI  
analyses, so I would like to have a mask for each and every ROI in  
order to get the pixel coordinates in order to get changes in  
intensity in a pixel-by-pixel-basis-within-the-ROI.

Best Regards,

Serapio