On-line help in dtcollect is provided by HyperText Markup Language files that are viewable via a HTML viewer such as NCSA mosaic.
Help is available by choosing Help in the dtcollect menubar.
Communicate with dtdisplay to automatically display images. For example, the first image in a scan might be acquired by exposing a crystal for 10 seconds while rotating the phi axis from 0 to 1 degree, the second image by rotating the phi axis from 1 to 2 degrees, and the last image by rotating phi from 179 to 180 degrees.